syzbot

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WARNING: CPU: 1 PID: 5828 at fs/gfs2/super.c:608 gfs2_put_super+0x912/0x950 fs/gfs2/super.c:608
Modules linked in:
CPU: 1 UID: 0 PID: 5828 Comm: syz-executor Not tainted 6.15.0-syzkaller-11173-g546b1c9e93c2 #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 3f 09 c8 fd 90 <0f> 0b 90 e9 4d fa ff ff e8 31 09 c8 fd e9 9c f9 ff ff 44 89 f1 80
RSP: 0018:ffffc90003d37cb0 EFLAGS: 00010293
RAX: ffffffff83f85441 RBX: 0000000000000000 RCX: ffff88801cb75a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88814d03c818 R08: ffff88814d03c0af R09: 1ffff11029a07815
R10: dffffc0000000000 R11: ffffed1029a07816 R12: ffff88814d03c0a8
R13: ffff88814d03c818 R14: 0000000000000800 R15: ffff88814d03c000
FS:  00005555672e7500(0000) GS:ffff888125d5f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fc80035da0 CR3: 000000005e9d5000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1753
 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: 0033:0x7f7f10b8fc97
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:00007ffc60abc6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7f10c1089d RCX: 00007f7f10b8fc97
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc60abc7a0
RBP: 00007ffc60abc7a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc60abd830
R13: 00007f7f10c1089d R14: 00000000000259ff R15: 00007ffc60abd870
 </TASK>