------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:331!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5835 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:qd_put+0x1a2/0x1b0 fs/gfs2/quota.c:331
Code: 0e fe e9 da fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 6f ff ff ff 48 89 ef e8 99 6b 0e fe e9 62 ff ff ff e8 7f 45 a4 fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900039d7be8 EFLAGS: 00010293
RAX: ffffffff84215b01 RBX: ffff8880566ef3f0 RCX: ffff888041169e40
RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000000
RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200073af64 R12: ffff8880566ef460
R13: dffffc0000000000 R14: ffff8880566ef420 R15: 1ffff1100acdde8c
FS:  000055558ef02500(0000) GS:ffff888125563000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d623ffc CR3: 00000000601c6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_quota_sync+0x3cf/0x470 fs/gfs2/quota.c:1362
 gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:660
 sync_filesystem+0xee/0x230 fs/sync.c:56
 generic_shutdown_super+0x77/0x2d0 fs/super.c:625
 kill_block_super+0x44/0x90 fs/super.c:1725
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 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:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __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 include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f749d59d1d7
Code: a2 c7 05 bc e3 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc311743b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f749d631c3b RCX: 00007f749d59d1d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc31174470
RBP: 00007ffc31174470 R08: 00007ffc31175470 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc31175500
R13: 00007f749d631c3b R14: 00000000000483ad R15: 00007ffc31175540
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qd_put+0x1a2/0x1b0 fs/gfs2/quota.c:331
Code: 0e fe e9 da fe ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 6f ff ff ff 48 89 ef e8 99 6b 0e fe e9 62 ff ff ff e8 7f 45 a4 fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900039d7be8 EFLAGS: 00010293
RAX: ffffffff84215b01 RBX: ffff8880566ef3f0 RCX: ffff888041169e40
RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000000
RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200073af64 R12: ffff8880566ef460
R13: dffffc0000000000 R14: ffff8880566ef420 R15: 1ffff1100acdde8c
FS:  000055558ef02500(0000) GS:ffff888125563000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d623ffc CR3: 00000000601c6000 CR4: 00000000003526f0