INFO: task hung in rdma_destroy_id (2)
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syzbot
7 dic 2022, 00:36:5107/12/22
a syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1121216b880000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=90634e20baba61838a8a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+90634e...@syzkaller.appspotmail.com
INFO: task syz-executor.2:10646 blocked for more than 140 seconds.
Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28648 10646 8157 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f7c6e71bf8b
Code: Bad RIP value.
RSP: 002b:00007ffd334b2500 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f7c6e71bf8b
RDX: 00007f7c6e2e37a0 RSI: ffffffffffffffff RDI: 0000000000000005
RBP: 00007f7c6e88b980 R08: 0000000000000000 R09: 00007f7c6e2de000
R10: 00007f7c6e2e37a8 R11: 0000000000000293 R12: 000000000033bdaf
R13: 00007ffd334b2600 R14: 00007f7c6e889f80 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/1572:
#0: 00000000b88db280 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7813:
#0: 00000000a3861fd8 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
5 locks held by syz-executor.3/8403:
#0: 000000004ada8193 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 000000004ada8193 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
#2: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#2: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
#3: 00000000878ab25d (&mm->context.lock){+.+.}, at: ldt_dup_context+0x38/0x260 arch/x86/kernel/ldt.c:367
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pte_range mm/memory.c:1094 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pmd_range mm/memory.c:1165 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pud_range mm/memory.c:1199 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_p4d_range mm/memory.c:1221 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_page_range+0xdc1/0x2ff0 mm/memory.c:1283
2 locks held by syz-executor.1/29006:
2 locks held by syz-executor.4/29011:
2 locks held by syz-executor.0/29012:
2 locks held by syz-executor.5/29018:
2 locks held by syz-executor.3/29019:
#0: 0000000081adaacb (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 0000000081adaacb (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
2 locks held by syz-executor.0/29030:
2 locks held by syz-executor.5/29032:
#0: 0000000081adaacb (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 0000000081adaacb (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
2 locks held by syz-executor.5/29043:
3 locks held by syz-executor.3/29044:
3 locks held by syz-executor.0/29053:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4693 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
RIP: 0010:do_raw_spin_unlock+0x24/0x230 kernel/locking/spinlock_debug.c:134
Code: 83 4c 00 eb b2 90 48 b8 00 00 00 00 00 fc ff df 41 55 41 54 55 48 89 fd 48 83 c7 04 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 <83> e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 bc 01 00 00 81 7d 04 ad
RSP: 0018:ffff8880a0dcf988 EFLAGS: 00000803
RAX: ffffffff8d3a3f8c RBX: 0000000000000086 RCX: 1ffff110141b89ce
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffff8d3a3f8c
RBP: ffffffff8d3a3f88 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000009 R12: dead000000000200
R13: ffff88807c6ea000 R14: 0000000000000000 R15: dffffc0000000000
FS: 00007f82e4bcd8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f82e1cfe008 CR3: 00000000a11d4000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline]
_raw_spin_unlock_irqrestore+0x23/0xe0 kernel/locking/spinlock.c:184
__debug_check_no_obj_freed lib/debugobjects.c:798 [inline]
debug_check_no_obj_freed+0x201/0x490 lib/debugobjects.c:817
free_pages_prepare mm/page_alloc.c:1056 [inline]
__free_pages_ok+0x22d/0xd30 mm/page_alloc.c:1279
slab_destroy mm/slab.c:1713 [inline]
slabs_destroy+0x90/0xd0 mm/slab.c:1729
cache_flusharray mm/slab.c:3490 [inline]
___cache_free+0x295/0x3a0 mm/slab.c:3532
qlink_free mm/kasan/quarantine.c:147 [inline]
qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166
quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259
kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538
slab_post_alloc_hook mm/slab.h:445 [inline]
slab_alloc mm/slab.c:3397 [inline]
kmem_cache_alloc+0x110/0x370 mm/slab.c:3557
prepare_creds+0x39/0x510 kernel/cred.c:255
do_faccessat+0x94/0x7a0 fs/open.c:359
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f82e3e889c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe0a037698 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007ffe0a03a6c0 RCX: 00007f82e3e889c7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055a44da479a3
RBP: 00007ffe0a0377e0 R08: 000055a44da3d3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 000055a44ed828a0 R15: 00007ffe0a037cd0
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1121216b880000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=90634e20baba61838a8a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+90634e...@syzkaller.appspotmail.com
INFO: task syz-executor.2:10646 blocked for more than 140 seconds.
Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28648 10646 8157 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f7c6e71bf8b
Code: Bad RIP value.
RSP: 002b:00007ffd334b2500 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f7c6e71bf8b
RDX: 00007f7c6e2e37a0 RSI: ffffffffffffffff RDI: 0000000000000005
RBP: 00007f7c6e88b980 R08: 0000000000000000 R09: 00007f7c6e2de000
R10: 00007f7c6e2e37a8 R11: 0000000000000293 R12: 000000000033bdaf
R13: 00007ffd334b2600 R14: 00007f7c6e889f80 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/1572:
#0: 00000000b88db280 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7813:
#0: 00000000a3861fd8 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
5 locks held by syz-executor.3/8403:
#0: 000000004ada8193 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 000000004ada8193 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
#2: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#2: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
#3: 00000000878ab25d (&mm->context.lock){+.+.}, at: ldt_dup_context+0x38/0x260 arch/x86/kernel/ldt.c:367
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pte_range mm/memory.c:1094 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pmd_range mm/memory.c:1165 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_pud_range mm/memory.c:1199 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_p4d_range mm/memory.c:1221 [inline]
#4: 000000001fd60d74 (&(ptlock_ptr(page))->rlock#2/1){+.+.}, at: copy_page_range+0xdc1/0x2ff0 mm/memory.c:1283
2 locks held by syz-executor.1/29006:
2 locks held by syz-executor.4/29011:
2 locks held by syz-executor.0/29012:
2 locks held by syz-executor.5/29018:
2 locks held by syz-executor.3/29019:
#0: 0000000081adaacb (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 0000000081adaacb (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
2 locks held by syz-executor.0/29030:
2 locks held by syz-executor.5/29032:
#0: 0000000081adaacb (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 0000000081adaacb (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000b88db280 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
#1: 00000000b88db280 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
2 locks held by syz-executor.5/29043:
3 locks held by syz-executor.3/29044:
3 locks held by syz-executor.0/29053:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4693 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:debug_spin_unlock kernel/locking/spinlock_debug.c:97 [inline]
RIP: 0010:do_raw_spin_unlock+0x24/0x230 kernel/locking/spinlock_debug.c:134
Code: 83 4c 00 eb b2 90 48 b8 00 00 00 00 00 fc ff df 41 55 41 54 55 48 89 fd 48 83 c7 04 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 <83> e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 bc 01 00 00 81 7d 04 ad
RSP: 0018:ffff8880a0dcf988 EFLAGS: 00000803
RAX: ffffffff8d3a3f8c RBX: 0000000000000086 RCX: 1ffff110141b89ce
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffff8d3a3f8c
RBP: ffffffff8d3a3f88 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000009 R12: dead000000000200
R13: ffff88807c6ea000 R14: 0000000000000000 R15: dffffc0000000000
FS: 00007f82e4bcd8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f82e1cfe008 CR3: 00000000a11d4000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline]
_raw_spin_unlock_irqrestore+0x23/0xe0 kernel/locking/spinlock.c:184
__debug_check_no_obj_freed lib/debugobjects.c:798 [inline]
debug_check_no_obj_freed+0x201/0x490 lib/debugobjects.c:817
free_pages_prepare mm/page_alloc.c:1056 [inline]
__free_pages_ok+0x22d/0xd30 mm/page_alloc.c:1279
slab_destroy mm/slab.c:1713 [inline]
slabs_destroy+0x90/0xd0 mm/slab.c:1729
cache_flusharray mm/slab.c:3490 [inline]
___cache_free+0x295/0x3a0 mm/slab.c:3532
qlink_free mm/kasan/quarantine.c:147 [inline]
qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166
quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259
kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538
slab_post_alloc_hook mm/slab.h:445 [inline]
slab_alloc mm/slab.c:3397 [inline]
kmem_cache_alloc+0x110/0x370 mm/slab.c:3557
prepare_creds+0x39/0x510 kernel/cred.c:255
do_faccessat+0x94/0x7a0 fs/open.c:359
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f82e3e889c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe0a037698 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007ffe0a03a6c0 RCX: 00007f82e3e889c7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055a44da479a3
RBP: 00007ffe0a0377e0 R08: 000055a44da3d3e5 R09: 0000000000000018
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 000055a44ed828a0 R15: 00007ffe0a037cd0
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
27 gen 2023, 12:19:3927/01/23
a syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11809649480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=141d75f1480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+90634e...@syzkaller.appspotmail.com
INFO: task syz-executor330:4291 blocked for more than 140 seconds.
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 00000000000013c0
INFO: task syz-executor330:4921 blocked for more than 140 seconds.
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 00000000000013e6
INFO: task syz-executor330:20847 blocked for more than 140 seconds.
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 0000000000001bd7
Showing all locks held in the system:
1 lock held by ksoftirqd/1/18:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
1 lock held by khungtaskd/1570:
#0: 0000000084e2d5d8 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7811:
#0: 00000000fbf24c6b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
4 locks held by syz-executor330/8113:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000a8d8c557 (tk_core.seq){----}, at: current_kernel_time64 include/linux/timekeeping.h:277 [inline]
#1: 00000000a8d8c557 (tk_core.seq){----}, at: current_time+0x6f/0x1c0 fs/inode.c:2162
#2: 000000008b87dc0b (pool_lock){-.-.}, at: __free_object+0x17/0x1e0 lib/debugobjects.c:251
#3: 00000000b03ecc46 (&mm->context.lock){+.+.}, at: ldt_dup_context+0x38/0x260 arch/x86/kernel/ldt.c:367
1 lock held by cron/14961:
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: inode_lock_shared include/linux/fs.h:758 [inline]
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: do_last fs/namei.c:3326 [inline]
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: path_openat+0x17ec/0x2df0 fs/namei.c:3537
1 lock held by syz-executor330/14967:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0xe0 kernel/rcu/update.c:253
Code: ff ff 48 89 ef e8 90 c4 47 00 e9 fa fd ff ff 48 89 ef e8 83 c4 47 00 e9 62 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> c7 c0 44 e0 26 8b 53 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83
RSP: 0000:ffff88809642fb70 EFLAGS: 00000246
RAX: ffff88809c9fe1c0 RBX: 0000000000000000 RCX: ffffffff818d0dbf
RDX: 0000000000000000 RSI: 00000000000012c2 RDI: ffffffff8872a8e0
RBP: ffffffff8872a8e0 R08: ffffffffffffffe8 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000440549 R12: 00000000000012c2
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809642fd48
FS: 0000555555657300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
process_huge_page mm/memory.c:4802 [inline]
clear_huge_page+0x98/0x460 mm/memory.c:4863
__do_huge_pmd_anonymous_page mm/huge_memory.c:583 [inline]
do_huge_pmd_anonymous_page+0xbb5/0x1e60 mm/huge_memory.c:740
create_huge_pmd mm/memory.c:4066 [inline]
__handle_mm_fault+0x289c/0x41c0 mm/memory.c:4270
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f6f63e69738
Code: 01 00 00 00 48 8d 35 2d 89 08 00 e8 92 06 00 00 66 0f 6f 05 3a 8c 08 00 45 31 c0 48 b8 72 64 6d 61 5f 63 6d 00 b9 02 00 00 00 <48> 89 04 25 50 00 00 20 31 c0 ba 40 00 00 20 0f 29 04 25 40 00 00
RSP: 002b:00007ffd09d4d200 EFLAGS: 00010246
RAX: 006d635f616d6472 RBX: 00000000001185ac RCX: 0000000000000002
RDX: 0000000000000012 RSI: 00007f6f63ef2046 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd09d4cc70
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 0000000000008214
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=90634e20baba61838a8a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13bc6925480000
dashboard link: https://syzkaller.appspot.com/bug?extid=90634e20baba61838a8a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=141d75f1480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+90634e...@syzkaller.appspotmail.com
Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor330 D28368 4291 8112 0x00000004
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f6f63e69f03
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 00000000000013c0
INFO: task syz-executor330:4921 blocked for more than 140 seconds.
Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor330 D28368 4921 8109 0x00000004
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f6f63e69f03
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 00000000000013e6
INFO: task syz-executor330:20847 blocked for more than 140 seconds.
Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor330 D28368 20847 8115 0x00000004
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f6f63e69f03
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
rdma_destroy_id+0x4c9/0x950 drivers/infiniband/core/cma.c:1750
ucma_close+0x140/0x360 drivers/infiniband/core/ucma.c:1819
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: Bad RIP value.
RSP: 002b:00007ffd09d4d1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f6f63e69f03
RDX: 0000000000000048 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd09d4d220 R09: 00007ffd09d4d220
R10: 00007ffd09d4d220 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 0000000000001bd7
Showing all locks held in the system:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
1 lock held by khungtaskd/1570:
#0: 0000000084e2d5d8 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7811:
#0: 00000000fbf24c6b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
4 locks held by syz-executor330/8113:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
#1: 00000000a8d8c557 (tk_core.seq){----}, at: current_kernel_time64 include/linux/timekeeping.h:277 [inline]
#1: 00000000a8d8c557 (tk_core.seq){----}, at: current_time+0x6f/0x1c0 fs/inode.c:2162
#2: 000000008b87dc0b (pool_lock){-.-.}, at: __free_object+0x17/0x1e0 lib/debugobjects.c:251
#3: 00000000b03ecc46 (&mm->context.lock){+.+.}, at: ldt_dup_context+0x38/0x260 arch/x86/kernel/ldt.c:367
1 lock held by cron/14961:
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: inode_lock_shared include/linux/fs.h:758 [inline]
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: do_last fs/namei.c:3326 [inline]
#0: 0000000010803314 (&type->i_mutex_dir_key#3){++++}, at: path_openat+0x17ec/0x2df0 fs/namei.c:3537
1 lock held by syz-executor330/14967:
#0: 00000000a719046e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
#0: 00000000a719046e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
NMI backtrace for cpu 1
CPU: 1 PID: 14991 Comm: syz-executor330 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0xe0 kernel/rcu/update.c:253
Code: ff ff 48 89 ef e8 90 c4 47 00 e9 fa fd ff ff 48 89 ef e8 83 c4 47 00 e9 62 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> c7 c0 44 e0 26 8b 53 48 ba 00 00 00 00 00 fc ff df 48 89 c1 83
RSP: 0000:ffff88809642fb70 EFLAGS: 00000246
RAX: ffff88809c9fe1c0 RBX: 0000000000000000 RCX: ffffffff818d0dbf
RDX: 0000000000000000 RSI: 00000000000012c2 RDI: ffffffff8872a8e0
RBP: ffffffff8872a8e0 R08: ffffffffffffffe8 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000440549 R12: 00000000000012c2
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88809642fd48
FS: 0000555555657300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000050 CR3: 00000000a195d000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
___might_sleep+0x15/0x2b0 kernel/sched/core.c:6157
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
process_huge_page mm/memory.c:4802 [inline]
clear_huge_page+0x98/0x460 mm/memory.c:4863
__do_huge_pmd_anonymous_page mm/huge_memory.c:583 [inline]
do_huge_pmd_anonymous_page+0xbb5/0x1e60 mm/huge_memory.c:740
create_huge_pmd mm/memory.c:4066 [inline]
__handle_mm_fault+0x289c/0x41c0 mm/memory.c:4270
handle_mm_fault+0x436/0xb10 mm/memory.c:4336
__do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0033:0x7f6f63e69738
Code: 01 00 00 00 48 8d 35 2d 89 08 00 e8 92 06 00 00 66 0f 6f 05 3a 8c 08 00 45 31 c0 48 b8 72 64 6d 61 5f 63 6d 00 b9 02 00 00 00 <48> 89 04 25 50 00 00 20 31 c0 ba 40 00 00 20 0f 29 04 25 40 00 00
RSP: 002b:00007ffd09d4d200 EFLAGS: 00010246
RAX: 006d635f616d6472 RBX: 00000000001185ac RCX: 0000000000000002
RDX: 0000000000000012 RSI: 00007f6f63ef2046 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd09d4cc70
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd09d4d218
R13: 00007ffd09d4d250 R14: 00007ffd09d4d230 R15: 0000000000008214
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