syzbot

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WARNING: CPU: 1 PID: 5831 at fs/gfs2/super.c:608 gfs2_put_super+0x912/0x950 fs/gfs2/super.c:608
Modules linked in:
CPU: 1 UID: 0 PID: 5831 Comm: syz-executor Not tainted 6.16.0-rc4-syzkaller-00108-g17bbde2e1716 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:gfs2_put_super+0x912/0x950 fs/gfs2/super.c:608
Code: ff e8 22 f1 f8 ff 4c 89 ff e8 3a 30 00 00 4c 89 ff 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 24 1d fc ff e8 af dd c7 fd 90 <0f> 0b 90 e9 4d fa ff ff e8 a1 dd c7 fd e9 9c f9 ff ff 44 89 f1 80
RSP: 0018:ffffc90003c6fcb0 EFLAGS: 00010293
RAX: ffffffff83f870f1 RBX: 0000000000000000 RCX: ffff888029b21e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88806b840818 R08: ffff88806b8400af R09: 1ffff1100d708015
R10: dffffc0000000000 R11: ffffed100d708016 R12: ffff88806b8400a8
R13: ffff88806b840818 R14: 0000000000000800 R15: ffff88806b840000
FS:  000055555e550500(0000) GS:ffff888125d50000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000001a000 CR3: 000000005c536000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1755
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f734358fc57
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:00007ffcbaf9f9e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7343610925 RCX: 00007f734358fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcbaf9faa0
RBP: 00007ffcbaf9faa0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcbafa0b30
R13: 00007f7343610925 R14: 000000000007616a R15: 00007ffcbafa0b70
 </TASK>