------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:331!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5834 Comm: syz-executor Not tainted 6.15.0-syzkaller-13743-g8630c59e9936 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:qd_put+0x134/0x190 fs/gfs2/quota.c:331
Code: c7 c7 00 33 ef 9a 48 8d 73 78 e8 87 ab fb fd 4c 89 e7 e8 df a1 77 07 5b 5d 41 5c 41 5d 41 5e e9 f2 e8 b3 fd e8 ed e8 b3 fd 90 <0f> 0b e8 e5 e8 b3 fd 4c 89 e7 e8 0d da cd 00 4c 89 e7 e8 b5 a1 77
RSP: 0018:ffffc90003c6fc38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88806ca14000 RCX: ffffffff84083246
RDX: ffff88802e299e00 RSI: ffffffff84083313 RDI: 0000000000000005
RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffff80 R11: 0000000000000001 R12: ffff88806ca14030
R13: ffff88806ca14070 R14: 0000000000000000 R15: ffff888031552008
FS:  000055558dd75500(0000) GS:ffff88812475b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005582c2c4a950 CR3: 00000000597d9000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_quota_sync+0x358/0x570 fs/gfs2/quota.c:1361
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:660
 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:1753
 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:1417
 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: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+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5989f8fc57
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:00007ffcfdca1938 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f598a010925 RCX: 00007f5989f8fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcfdca19f0
RBP: 00007ffcfdca19f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcfdca2a80
R13: 00007f598a010925 R14: 000000000001e4c8 R15: 00007ffcfdca2ac0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qd_put+0x134/0x190 fs/gfs2/quota.c:331
Code: c7 c7 00 33 ef 9a 48 8d 73 78 e8 87 ab fb fd 4c 89 e7 e8 df a1 77 07 5b 5d 41 5c 41 5d 41 5e e9 f2 e8 b3 fd e8 ed e8 b3 fd 90 <0f> 0b e8 e5 e8 b3 fd 4c 89 e7 e8 0d da cd 00 4c 89 e7 e8 b5 a1 77
RSP: 0018:ffffc90003c6fc38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88806ca14000 RCX: ffffffff84083246
RDX: ffff88802e299e00 RSI: ffffffff84083313 RDI: 0000000000000005
RBP: 00000000ffffff80 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffff80 R11: 0000000000000001 R12: ffff88806ca14030
R13: ffff88806ca14070 R14: 0000000000000000 R15: ffff888031552008
FS:  000055558dd75500(0000) GS:ffff88812475b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005582c2c4a950 CR3: 00000000597d9000 CR4: 0000000000350ef0