gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: found 1 quota changes
gfs2: fsid=syz:syz.0: fatal assertion failed
------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:320!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 29389 Comm: syz.1.4684 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705
Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 0d 81 2d fe 48 8b 44 24 10 48 8b 38 e8 90 1b 34 fd 90 <0f> 0b e8 48 fe c9 fd 48 8b 7c 24 10 e8 7e 1b 34 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000e077910 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100a19e2e0 RCX: b136665a33e51f00
RDX: ffffc9000c4da000 RSI: 00000000000048f4 RDI: 00000000000048f5
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: ffff888050cf1690
R13: ffff888050cf1700 R14: ffff888050cf1720 R15: 0000000000000000
FS:  00007f4fe41e36c0(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c318bfe CR3: 0000000058035000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_quota_change+0x394/0x800 fs/gfs2/quota.c:1304
 gfs2_free_di+0x2db/0x3f0 fs/gfs2/rgrp.c:2592
 gfs2_dinode_dealloc+0x30d/0x3e0 fs/gfs2/inode.c:497
 evict_unlinked_inode fs/gfs2/super.c:1332 [inline]
 gfs2_evict_inode+0xe0b/0x1000 fs/gfs2/super.c:1429
 evict+0x504/0x9c0 fs/inode.c:810
 d_delete_notify include/linux/fsnotify.h:402 [inline]
 vfs_rmdir+0x3ec/0x520 fs/namei.c:4483
 do_rmdir+0x2ac/0x630 fs/namei.c:4525
 __do_sys_rmdir fs/namei.c:4544 [inline]
 __se_sys_rmdir fs/namei.c:4542 [inline]
 __x64_sys_rmdir+0x47/0x50 fs/namei.c:4542
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4fe338e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4fe41e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f4fe35b5fa0 RCX: 00007f4fe338e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000400
RBP: 00007f4fe3410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4fe35b5fa0 R15: 00007ffce60e9698
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:705
Code: 00 00 00 00 00 fc ff df 48 8b 0c 24 80 3c 01 00 74 0a 48 8b 7c 24 10 e8 0d 81 2d fe 48 8b 44 24 10 48 8b 38 e8 90 1b 34 fd 90 <0f> 0b e8 48 fe c9 fd 48 8b 7c 24 10 e8 7e 1b 34 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000e077910 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100a19e2e0 RCX: b136665a33e51f00
RDX: ffffc9000c4da000 RSI: 00000000000048f4 RDI: 00000000000048f5
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: ffff888050cf1690
R13: ffff888050cf1700 R14: ffff888050cf1720 R15: 0000000000000000
FS:  00007f4fe41e36c0(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c318bfe CR3: 0000000058035000 CR4: 0000000000350ef0