------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:331!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5856 Comm: syz-executor Not tainted 6.17.0-rc2-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:qd_put+0x134/0x190 fs/gfs2/quota.c:331
Code: c7 c7 c0 eb f8 9a 48 8d 73 78 e8 57 1b f4 fd 4c 89 e7 e8 bf 8e 85 07 5b 5d 41 5c 41 5d 41 5e e9 02 dd ac fd e8 fd dc ac fd 90 <0f> 0b e8 f5 dc ac fd 4c 89 e7 e8 6d 79 cf 00 4c 89 e7 e8 95 8e 85
RSP: 0018:ffffc90002fa7c38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807a60f000 RCX: ffffffff840eb366
RDX: ffff888033b95a00 RSI: ffffffff840eb433 RDI: 0000000000000005
RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffff80 R11: 0000000000000001 R12: ffff88807a60f030
R13: ffff88807a60f070 R14: 0000000000000000 R15: ffff888068369008
FS:  000055556721a500(0000) GS:ffff8881246bd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5920f52000 CR3: 00000000584ad000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:658
 sync_filesystem+0x111/0x290 fs/sync.c:56
 generic_shutdown_super+0x74/0x390 fs/super.c:622
 kill_block_super+0x3b/0x90 fs/super.c:1766
 gfs2_kill_sb+0x371/0x420 fs/gfs2/ops_fstype.c:1798
 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:1378
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4c0eb8ff17
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:00007ffe33bf22f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f4c0ec11c05 RCX: 00007f4c0eb8ff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe33bf23b0
RBP: 00007ffe33bf23b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe33bf3440
R13: 00007f4c0ec11c05 R14: 0000000000101214 R15: 00007ffe33bf3480
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qd_put+0x134/0x190 fs/gfs2/quota.c:331
Code: c7 c7 c0 eb f8 9a 48 8d 73 78 e8 57 1b f4 fd 4c 89 e7 e8 bf 8e 85 07 5b 5d 41 5c 41 5d 41 5e e9 02 dd ac fd e8 fd dc ac fd 90 <0f> 0b e8 f5 dc ac fd 4c 89 e7 e8 6d 79 cf 00 4c 89 e7 e8 95 8e 85
RSP: 0018:ffffc90002fa7c38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807a60f000 RCX: ffffffff840eb366
RDX: ffff888033b95a00 RSI: ffffffff840eb433 RDI: 0000000000000005
RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffff80 R11: 0000000000000001 R12: ffff88807a60f030
R13: ffff88807a60f070 R14: 0000000000000000 R15: ffff888068369008
FS:  000055556721a500(0000) GS:ffff8881246bd000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5920f52000 CR3: 00000000584ad000 CR4: 0000000000350ef0