syzbot

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WARNING: fs/gfs2/super.c:606 at gfs2_put_super+0x688/0x780 fs/gfs2/super.c:606, CPU#0: syz-executor/12085
Modules linked in:
CPU: 0 UID: 0 PID: 12085 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:gfs2_put_super+0x688/0x780 fs/gfs2/super.c:606
Code: 02 00 75 6e 49 8b 9c 24 a8 00 00 00 31 ff 48 c1 eb 02 83 e3 01 89 de e8 a6 f5 a3 fd 84 db 0f 85 69 fb ff ff e8 49 fb a3 fd 90 <0f> 0b 90 e9 5b fb ff ff 48 89 ef e8 48 11 0c fe e9 5b fa ff ff 48
RSP: 0018:ffffc9000c017ca0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff841a08ea
RDX: ffff88802f89bd00 RSI: ffffffff841a08f7 RDI: 0000000000000001
RBP: ffff888034062a80 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000678cd588 R12: ffff888047a48000
R13: dffffc0000000000 R14: ffff888047a488b0 R15: 0000000000000000
FS:  000055557f2c0500(0000) GS:ffff888124984000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe530bc4f98 CR3: 00000000613bc000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 generic_shutdown_super+0x156/0x390 fs/super.c:643
 kill_block_super+0x3b/0x90 fs/super.c:1730
 gfs2_kill_sb+0x4ab/0x590 fs/gfs2/ops_fstype.c:1800
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:474
 deactivate_super fs/super.c:507 [inline]
 deactivate_super+0xde/0x100 fs/super.c:503
 cleanup_mnt+0x225/0x450 fs/namespace.c:1318
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:44 [inline]
 exit_to_user_mode_loop+0xfb/0x540 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff90a790a77
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:00007ffe8ca780e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff90a813d7d RCX: 00007ff90a790a77
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe8ca781a0
RBP: 00007ffe8ca781a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe8ca79230
R13: 00007ff90a813d7d R14: 00000000000c8daf R15: 00007ffe8ca79270
 </TASK>