------------[ cut here ]------------
WARNING: CPU: 0 PID: 5818 at fs/namespace.c:1404 cleanup_mnt+0x483/0x4b0 fs/namespace.c:1404
Modules linked in:
CPU: 0 UID: 0 PID: 5818 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00248-g03d38806a902 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:cleanup_mnt+0x483/0x4b0 fs/namespace.c:1404
Code: 48 c7 c6 80 1a 43 82 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 9d 1f 64 ff e8 28 a5 7e ff e9 c5 fc ff ff e8 1e a5 7e ff 90 <0f> 0b 90 e9 d4 fc ff ff e8 10 a5 7e ff 48 89 ef e8 c8 37 06 00 e9
RSP: 0018:ffffc90003b57da8 EFLAGS: 00010293
RAX: ffffffff824319a2 RBX: 0000000000000002 RCX: ffff88805e181e00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffff888062073180 R08: ffffffff8243166c R09: 1ffffffff20778ce
R10: dffffc0000000000 R11: ffffffff824314f0 R12: 0000000000000004
R13: 1ffff1100c40e63b R14: 0000607f476250e4 R15: ffff8880620731d8
FS:  000055555c8f3500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3682d2ed11 CR3: 00000000655e0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ac6d8e497
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:00007fff49add108 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7ac6e0e08c RCX: 00007f7ac6d8e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff49add1c0
RBP: 00007fff49add1c0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff49ade250
R13: 00007f7ac6e0e08c R14: 000000000001b386 R15: 00007fff49ade290
 </TASK>