INFO: task hung in SyS_mq_unlink
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syzbot
May 6, 2019, 3:46:05 PM5/6/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 6d1510d8 Linux 4.14.116
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=113e7bff200000
kernel config: https://syzkaller.appspot.com/x/.config?x=a6d219c3406cc65d
dashboard link: https://syzkaller.appspot.com/bug?extid=bb90a5718be685d3d402
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+bb90a5...@syzkaller.appspotmail.com
INFO: task syz-executor.0:29485 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28976 29485 29464 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
schedule+0x92/0x1c0 kernel/sched/core.c:3427
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174
inode_lock_nested include/linux/fs.h:750 [inline]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x2000000d
RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d
audit: type=1326 audit(2000004075.756:1142): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11239
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000
RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b
audit: type=1326 audit(2000004075.916:1143): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241
comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.0:29547 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
audit: type=1326 audit(2000004076.316:1144): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
syz-executor.0 D29568 29547 29487 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
audit: type=1326 audit(2000004076.556:1145): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241
comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
schedule+0x92/0x1c0 kernel/sched/core.c:3427
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
audit: type=1326 audit(2000004076.946:1146): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174
inode_lock_nested include/linux/fs.h:750 [inline]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x2000000d
RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d
RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000
RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.0:30137 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D29568 30137 29746 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
Showing all locks held in the system:
1 lock held by khungtaskd/1008:
#0: (tasklist_lock){.+.+}, at: [<ffffffff81488bf8>]
debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4541
2 locks held by getty/7246:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7247:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7248:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7249:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7250:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7251:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7252:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
4 locks held by syz-executor.0/7290:
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap
kernel/fork.c:606 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm
kernel/fork.c:1199 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm
kernel/fork.c:1253 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>]
copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap
kernel/fork.c:607 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm
kernel/fork.c:1199 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm
kernel/fork.c:1253 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>]
copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap
kernel/fork.c:616 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm
kernel/fork.c:1199 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm
kernel/fork.c:1253 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>]
copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>]
i_mmap_lock_write include/linux/fs.h:470 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap
kernel/fork.c:681 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm
kernel/fork.c:1199 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm
kernel/fork.c:1253 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>]
copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
2 locks held by syz-executor.5/21587:
#0: (&type->s_umount_key#45){++++}, at: [<ffffffff818e4121>]
iterate_supers+0xe1/0x250 fs/super.c:611
#1: (&bdi->wb_switch_rwsem){+.+.}, at: [<ffffffff81979b50>]
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:336 [inline]
#1: (&bdi->wb_switch_rwsem){+.+.}, at: [<ffffffff81979b50>]
sync_inodes_sb+0x150/0x9b0 fs/fs-writeback.c:2445
5 locks held by kworker/u4:2/22657:
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>] work_static
include/linux/workqueue.h:199 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>] set_work_data
kernel/workqueue.c:619 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>]
set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>]
process_one_work+0x76e/0x1610 kernel/workqueue.c:2085
#1: ((&(&wb->dwork)->work)){+.+.}, at: [<ffffffff813d2dfb>]
process_one_work+0x7ab/0x1610 kernel/workqueue.c:2089
#2: (&type->s_umount_key#45){++++}, at: [<ffffffff818e3b10>]
trylock_super+0x20/0xf0 fs/super.c:402
#3: (&sbi->s_journal_flag_rwsem){.+.+}, at: [<ffffffff8173c5e2>]
do_writepages+0xd2/0x250 mm/page-writeback.c:2364
#4: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff817fb96c>]
i_mmap_lock_read include/linux/fs.h:480 [inline]
#4: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff817fb96c>]
rmap_walk_file+0x43c/0x8b0 mm/rmap.c:1819
2 locks held by syz-executor.0/29437:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29439:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29441:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29442:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29443:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29444:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29445:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29446:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29447:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29448:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29449:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29451:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29453:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29454:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29455:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29456:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29457:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29458:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29459:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29460:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29462:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29463:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29464:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29465:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29466:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29467:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29468:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29469:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29470:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29471:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29472:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29473:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29474:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29475:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29476:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29477:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29478:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29479:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29480:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29481:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29482:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29483:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29485:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29486:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29487:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29489:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29490:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29491:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29492:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29493:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29495:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29496:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29497:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29498:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29499:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29500:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29501:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29502:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29503:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29504:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29505:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29506:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29507:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29508:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29509:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29510:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29511:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29512:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29513:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29514:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29515:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29516:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29517:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29519:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29520:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29521:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29522:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29523:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29524:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29525:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29526:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29527:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29528:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29529:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29530:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29531:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29532:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29533:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29534:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29535:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29536:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29537:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29538:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29539:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29540:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29541:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29542:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->
---
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syzbot found the following crash on:
HEAD commit: 6d1510d8 Linux 4.14.116
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=113e7bff200000
kernel config: https://syzkaller.appspot.com/x/.config?x=a6d219c3406cc65d
dashboard link: https://syzkaller.appspot.com/bug?extid=bb90a5718be685d3d402
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+bb90a5...@syzkaller.appspotmail.com
INFO: task syz-executor.0:29485 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28976 29485 29464 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
schedule+0x92/0x1c0 kernel/sched/core.c:3427
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174
inode_lock_nested include/linux/fs.h:750 [inline]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x2000000d
RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d
audit: type=1326 audit(2000004075.756:1142): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11239
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000
RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b
audit: type=1326 audit(2000004075.916:1143): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241
comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.0:29547 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
audit: type=1326 audit(2000004076.316:1144): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
syz-executor.0 D29568 29547 29487 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
audit: type=1326 audit(2000004076.556:1145): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11241
comm="syz-executor.5" exe="/root/syz-executor.5" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
schedule+0x92/0x1c0 kernel/sched/core.c:3427
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
audit: type=1326 audit(2000004076.946:1146): auid=4294967295 uid=0 gid=0
ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=11254
comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e
syscall=228 compat=0 ip=0x45bc0a code=0xffff0000
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write_nested+0x57/0x90 kernel/locking/rwsem.c:174
inode_lock_nested include/linux/fs.h:750 [inline]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x2000000d
RSP: 002b:00007fa9851a1bd8 EFLAGS: 00000292 ORIG_RAX: 00000000000000f1
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 000000002000000d
RDX: a65056c889bd8bc1 RSI: 00000000000000d9 RDI: 0000000020800000
RBP: 0000000000000066 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000292 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.0:30137 blocked for more than 140 seconds.
Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D29568 30137 29746 0x00000000
Call Trace:
context_switch kernel/sched/core.c:2807 [inline]
__schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
Showing all locks held in the system:
1 lock held by khungtaskd/1008:
#0: (tasklist_lock){.+.+}, at: [<ffffffff81488bf8>]
debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4541
2 locks held by getty/7246:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7247:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7248:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7249:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7250:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7251:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/7252:
#0: (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>]
ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
#1: (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>]
n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
4 locks held by syz-executor.0/7290:
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap
kernel/fork.c:606 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm
kernel/fork.c:1199 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm
kernel/fork.c:1253 [inline]
#0: (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>]
copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap
kernel/fork.c:607 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm
kernel/fork.c:1199 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm
kernel/fork.c:1253 [inline]
#1: (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>]
copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap
kernel/fork.c:616 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm
kernel/fork.c:1199 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm
kernel/fork.c:1253 [inline]
#2: (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>]
copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>]
i_mmap_lock_write include/linux/fs.h:470 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap
kernel/fork.c:681 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm
kernel/fork.c:1199 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm
kernel/fork.c:1253 [inline]
#3: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>]
copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
2 locks held by syz-executor.5/21587:
#0: (&type->s_umount_key#45){++++}, at: [<ffffffff818e4121>]
iterate_supers+0xe1/0x250 fs/super.c:611
#1: (&bdi->wb_switch_rwsem){+.+.}, at: [<ffffffff81979b50>]
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:336 [inline]
#1: (&bdi->wb_switch_rwsem){+.+.}, at: [<ffffffff81979b50>]
sync_inodes_sb+0x150/0x9b0 fs/fs-writeback.c:2445
5 locks held by kworker/u4:2/22657:
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>] work_static
include/linux/workqueue.h:199 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>] set_work_data
kernel/workqueue.c:619 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>]
set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ("writeback"){+.+.}, at: [<ffffffff813d2dbe>]
process_one_work+0x76e/0x1610 kernel/workqueue.c:2085
#1: ((&(&wb->dwork)->work)){+.+.}, at: [<ffffffff813d2dfb>]
process_one_work+0x7ab/0x1610 kernel/workqueue.c:2089
#2: (&type->s_umount_key#45){++++}, at: [<ffffffff818e3b10>]
trylock_super+0x20/0xf0 fs/super.c:402
#3: (&sbi->s_journal_flag_rwsem){.+.+}, at: [<ffffffff8173c5e2>]
do_writepages+0xd2/0x250 mm/page-writeback.c:2364
#4: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff817fb96c>]
i_mmap_lock_read include/linux/fs.h:480 [inline]
#4: (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff817fb96c>]
rmap_walk_file+0x43c/0x8b0 mm/rmap.c:1819
2 locks held by syz-executor.0/29437:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29439:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29441:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29442:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29443:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29444:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29445:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29446:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29447:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29448:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29449:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29451:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29453:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29454:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29455:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29456:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29457:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29458:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29459:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29460:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29462:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29463:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29464:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29465:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29466:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29467:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29468:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29469:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29470:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29471:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29472:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29473:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29474:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29475:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29476:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29477:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29478:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29479:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29480:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29481:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29482:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29483:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29485:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29486:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29487:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29489:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29490:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29491:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29492:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29493:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29495:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29496:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29497:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29498:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29499:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29500:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29501:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29502:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29503:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29504:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29505:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29506:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29507:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29508:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29509:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29510:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29511:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29512:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29513:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29514:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29515:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29516:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29517:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29519:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29520:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29521:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29522:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29523:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29524:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29525:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29526:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29527:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29528:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29529:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29530:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29531:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29532:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29533:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29534:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29535:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29536:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29537:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29538:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29539:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29540:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29541:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
inode_lock_nested include/linux/fs.h:750 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SYSC_mq_unlink ipc/mqueue.c:874 [inline]
#1: (&sb->s_type->i_mutex_key#21/1){+.+.}, at: [<ffffffff829952e4>]
SyS_mq_unlink+0x1e4/0x4f0 ipc/mqueue.c:857
2 locks held by syz-executor.0/29542:
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>] sb_start_write
include/linux/fs.h:1545 [inline]
#0: (sb_writers#14){.+.+}, at: [<ffffffff8194f04f>]
mnt_want_write+0x3f/0xb0 fs/namespace.c:386
#1: (&sb->
---
This bug is generated by a bot. It may contain errors.
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syzbot
Oct 25, 2019, 4:45:06 AM10/25/19
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Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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