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 PTI
CPU: 0 UID: 0 PID: 6198 Comm: syz.2.60 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__qd_hold fs/gfs2/quota.c:320 [inline]
RIP: 0010:do_qc+0x5c1/0x5e0 fs/gfs2/quota.c:706
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 5d c6 0c fe 48 8b 44 24 10 48 8b 38 e8 d0 f3 07 fd 90 <0f> 0b e8 78 5d a3 fd 48 8b 7c 24 10 e8 be f3 07 fd 90 0f 0b 66 66
RSP: 0018:ffffc900020af8b0 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100abd9a8c RCX: d8381b530e19b300
RDX: ffffc90003fba000 RSI: 0000000000003d34 RDI: 0000000000003d35
RBP: ffffffffffffffff R08: ffffc900020af627 R09: 1ffff92000415ec4
R10: dffffc0000000000 R11: fffff52000415ec5 R12: ffff888055ecd3f0
R13: ffff888055ecd460 R14: ffff888055ecd480 R15: 0000000000000000
FS:  00007f8d36f6e6c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d361e9f00 CR3: 000000007a1a6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_quota_change+0x391/0x800 fs/gfs2/quota.c:1305
 gfs2_free_di+0x2db/0x3f0 fs/gfs2/rgrp.c:2592
 gfs2_dinode_dealloc+0x312/0x3f0 fs/gfs2/inode.c:509
 evict_unlinked_inode fs/gfs2/super.c:1328 [inline]
 gfs2_evict_inode+0x10bc/0x12d0 fs/gfs2/super.c:1463
 evict+0x61e/0xb10 fs/inode.c:841
 __dentry_kill+0x1a2/0x5e0 fs/dcache.c:670
 finish_dput+0xc9/0x480 fs/dcache.c:879
 end_dirop fs/namei.c:2952 [inline]
 end_creating include/linux/namei.h:123 [inline]
 end_creating_path fs/namei.c:4990 [inline]
 filename_mkdirat+0x30d/0x510 fs/namei.c:5299
 __do_sys_mkdirat fs/namei.c:5315 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5312
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8d3619b687
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8d36f6de58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f8d36f6dee0 RCX: 00007f8d3619b687
RDX: 00000000000001ff RSI: 00002000000000c0 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f8d36f6dea0 R14: 0000000000000000 R15: 0000000000000000
 </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:706
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 5d c6 0c fe 48 8b 44 24 10 48 8b 38 e8 d0 f3 07 fd 90 <0f> 0b e8 78 5d a3 fd 48 8b 7c 24 10 e8 be f3 07 fd 90 0f 0b 66 66
RSP: 0018:ffffc900020af8b0 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100abd9a8c RCX: d8381b530e19b300
RDX: ffffc90003fba000 RSI: 0000000000003d34 RDI: 0000000000003d35
RBP: ffffffffffffffff R08: ffffc900020af627 R09: 1ffff92000415ec4
R10: dffffc0000000000 R11: fffff52000415ec5 R12: ffff888055ecd3f0
R13: ffff888055ecd460 R14: ffff888055ecd480 R15: 0000000000000000
FS:  00007f8d36f6e6c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d361e9f00 CR3: 000000007a1a6000 CR4: 00000000003526f0