BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810eb240e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810eb240e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810eb240e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810eb24998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810eb24998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 2421 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 000000000000f3c6 R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810132a998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810132a998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 000000000000f7c7 R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810e3c50e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810e3c50e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810e3c50e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810e3c5998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810e3c5998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 000000000000fbcc R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810e3c70e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810e3c70e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810e3c70e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810e3c7998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810e3c7998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 000000000000ffc9 R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810132d998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810132d998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 00000000000103cf R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810132a0e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810132a998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810132a998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 00000000000107cb R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810e3c40e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810e3c40e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810e3c40e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810e3c4998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810e3c4998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 0000000000010bbd R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff88810132d0e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff88810132d998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff88810132d998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 0000000000010faf R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff8881013280e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff8881013280e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff8881013280e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff888101328998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888101328998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 00000000000113b5 R15: 00007ffef8abe570
 </TASK>
BUG: sleeping function called from invalid context at fs/inode.c:1928
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2421, name: syz-executor
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz-executor/2421:
 #0: ffff8881013290e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff8881013290e0 (&type->s_umount_key#38){....}-{3:3}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff8881013290e0 (&type->s_umount_key#38){....}-{3:3}, at: deactivate_super+0x33/0x40 fs/super.c:506
 #1: ffff888101329998 (&s->s_inode_list_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888101329998 (&s->s_inode_list_lock){....}-{2:2}, at: hook_sb_delete+0x3e/0x310 security/landlock/fs.c:1279
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 2421 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(none) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0xa2/0xf0 lib/dump_stack.c:120
 __might_resched+0x1bc/0x1e0 kernel/sched/core.c:8957
 iput+0x1d/0x280 fs/inode.c:1928
 hook_sb_delete+0x197/0x310 security/landlock/fs.c:1342
 security_sb_delete+0x26/0x90 security/security.c:1428
 generic_shutdown_super+0x49/0x110 fs/super.c:635
 kill_anon_super+0x14/0xb0 fs/super.c:1282
 deactivate_locked_super+0x36/0x150 fs/super.c:474
 cleanup_mnt+0x7c/0x130 fs/namespace.c:1378
 task_work_run+0x87/0xc0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x181/0x250 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f83be5201f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffef8abd3e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f83be5a1d7d RCX: 00007f83be5201f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffef8abd4a0
RBP: 00007ffef8abd4a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffef8abe530
R13: 00007f83be5a1d7d R14: 00000000000117b1 R15: 00007ffef8abe570
 </TASK>