[v6.1] WARNING in kernfs_remove_by_name_ns
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syzbot
Mar 18, 2023, 2:13:43 PM3/18/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 7eaef76fbc46 Linux 6.1.20
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13fdfed2c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=29ad3fe3c7b61175
dashboard link: https://syzkaller.appspot.com/bug?extid=31f8f06b90e752e51bf8
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/34f95428f5fb/disk-7eaef76f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1bdd9b2c390d/vmlinux-7eaef76f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/419140981cfa/Image-7eaef76f.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+31f8f0...@syzkaller.appspotmail.com
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d)
------------[ cut here ]------------
kernfs: can not remove 'enabled', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Not tainted 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d768 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 84888
hardirqs last enabled at (84887): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (84887): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (84888): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (84856): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (84856): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (84839): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'inconsistent', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d770 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 85170
hardirqs last enabled at (85169): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (85169): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (85170): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (85152): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (85152): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (85131): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'drop_subtree_threshold', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d778 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 85506
hardirqs last enabled at (85505): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (85505): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (85506): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (85498): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (85498): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (85421): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
---
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: 7eaef76fbc46 Linux 6.1.20
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13fdfed2c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=29ad3fe3c7b61175
dashboard link: https://syzkaller.appspot.com/bug?extid=31f8f06b90e752e51bf8
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/34f95428f5fb/disk-7eaef76f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1bdd9b2c390d/vmlinux-7eaef76f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/419140981cfa/Image-7eaef76f.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+31f8f0...@syzkaller.appspotmail.com
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d)
------------[ cut here ]------------
kernfs: can not remove 'enabled', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Not tainted 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d768 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 84888
hardirqs last enabled at (84887): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (84887): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (84888): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (84856): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (84856): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (84839): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'inconsistent', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d770 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 85170
hardirqs last enabled at (85169): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (85169): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (85170): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (85152): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (85152): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (85131): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'drop_subtree_threshold', no directory
WARNING: CPU: 1 PID: 8931 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 1 PID: 8931 Comm: syz-executor.4 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80002d397850
x29: ffff80002d397850 x28: 1fffe000236f2b42 x27: dfff800000000000
x26: ffff700005a72f60 x25: ffff800015e1d778 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368b3d76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b459ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000003
x11: ff8080000ab8f528 x10: 0000000000000003 x9 : 86d05737db7a4600
x8 : 86d05737db7a4600 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000123ad060 x0 : ffff80019ef1d000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 85506
hardirqs last enabled at (85505): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (85505): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (85506): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (85498): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (85498): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (85421): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
---
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
Mar 18, 2023, 2:30:57 PM3/18/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 7eaef76fbc46 Linux 6.1.20
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1549584ec80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14af981cc80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/34f95428f5fb/disk-7eaef76f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1bdd9b2c390d/vmlinux-7eaef76f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/419140981cfa/Image-7eaef76f.gz.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/a0898a93774a/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+31f8f0...@syzkaller.appspotmail.com
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d)
------------[ cut here ]------------
kernfs: can not remove 'enabled', no directory
WARNING: CPU: 0 PID: 4307 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Not tainted 6.1.20-syzkaller #0
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d768 x24: 1ffff000024f4f68
x17: 0000000000000000 x16: ffff80001225a41c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff808000081b28cc x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001db87138 x4 : ffff800015813880 x3 : ffff800008590318
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
hardirqs last enabled at (221369): [<ffff80000834aa64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (221370): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221334): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221334): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (220839): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Tainted: G W 6.1.20-syzkaller #0
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d770 x24: 1ffff000024f4f68
x17: 0000000000000000 x16: ffff80001225a41c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff808000081b28cc x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001db87138 x4 : ffff800015813880 x3 : ffff800008590318
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
hardirqs last enabled at (221425): [<ffff80000834aa64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (221426): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221400): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221400): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (221373): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Tainted: G W 6.1.20-syzkaller #0
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d778 x24: 1ffff000024f4f68
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b457ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001b1ab6d0 x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000826f27c
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
hardirqs last enabled at (221539): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (221539): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (221540): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221532): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221532): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (221513): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
HEAD commit: 7eaef76fbc46 Linux 6.1.20
git tree: linux-6.1.y
kernel config: https://syzkaller.appspot.com/x/.config?x=29ad3fe3c7b61175
dashboard link: https://syzkaller.appspot.com/bug?extid=31f8f06b90e752e51bf8
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16457bc2c80000
dashboard link: https://syzkaller.appspot.com/bug?extid=31f8f06b90e752e51bf8
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14af981cc80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/34f95428f5fb/disk-7eaef76f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1bdd9b2c390d/vmlinux-7eaef76f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/419140981cfa/Image-7eaef76f.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+31f8f0...@syzkaller.appspotmail.com
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d)
------------[ cut here ]------------
kernfs: can not remove 'enabled', no directory
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Not tainted 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80001db87850
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d768 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: ffff80001db869e0
x17: 0000000000000000 x16: ffff80001225a41c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff808000081b28cc x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001db87138 x4 : ffff800015813880 x3 : ffff800008590318
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 221370
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
hardirqs last enabled at (221369): [<ffff80000834aa64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (221370): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221334): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221334): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (220839): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'inconsistent', no directory
WARNING: CPU: 0 PID: 4307 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
------------[ cut here ]------------
kernfs: can not remove 'inconsistent', no directory
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80001db87850
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d770 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: ffff80001db869e0
x17: 0000000000000000 x16: ffff80001225a41c x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001
x11: ff808000081b28cc x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001db87138 x4 : ffff800015813880 x3 : ffff800008590318
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 221426
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
hardirqs last enabled at (221425): [<ffff80000834aa64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (221426): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221400): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221400): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (221373): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'drop_subtree_threshold', no directory
WARNING: CPU: 0 PID: 4307 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0x10c/0x188
------------[ cut here ]------------
kernfs: can not remove 'drop_subtree_threshold', no directory
Modules linked in:
CPU: 0 PID: 4307 Comm: syz-executor357 Tainted: G W 6.1.20-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
sp : ffff80001db87850
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x10c/0x188
lr : kernfs_remove_by_name_ns+0x108/0x188 fs/kernfs/dir.c:1625
x29: ffff80001db87850 x28: 1fffe000197c9342 x27: dfff800000000000
x26: ffff700003b70f60 x25: ffff800015e1d778 x24: 1ffff000024f4f68
x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 00000000fffffffe x19: ffff8000127a7b40 x18: 1fffe000368afd76
x17: ffff80001572d000 x16: ffff80000830b4b4 x15: ffff0001b457ebbc
x14: 1ffff00002ae60b0 x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001b1ab6d0 x10: 0000000000000000 x9 : a4c790541ad9b700
x8 : a4c790541ad9b700 x7 : ffff800008281b70 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000826f27c
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 221540
kernfs_remove_by_name_ns+0x10c/0x188
kernfs_remove_by_name include/linux/kernfs.h:618 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xf8/0x288 fs/sysfs/group.c:288
sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:312
__kobject_del+0x90/0x2d4 lib/kobject.c:587
kobject_del+0x48/0x68 lib/kobject.c:619
btrfs_sysfs_del_qgroups+0x16c/0x1bc fs/btrfs/sysfs.c:2214
btrfs_sysfs_add_qgroups+0x2bc/0x304 fs/btrfs/sysfs.c:2253
btrfs_quota_enable+0x204/0x1d90 fs/btrfs/qgroup.c:986
btrfs_ioctl_quota_ctl+0x144/0x188 fs/btrfs/ioctl.c:4571
btrfs_ioctl+0x6d8/0xb08 fs/btrfs/ioctl.c:5532
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
hardirqs last enabled at (221539): [<ffff800008281c10>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last enabled at (221539): [<ffff800008281c10>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4997
hardirqs last disabled at (221540): [<ffff8000122560d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last enabled at (221532): [<ffff800008020ee8>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last enabled at (221532): [<ffff800008020ee8>] __do_softirq+0xd88/0xff4 kernel/softirq.c:600
softirqs last disabled at (221513): [<ffff80000802b598>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
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