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 PTI
CPU: 0 UID: 0 PID: 9223 Comm: syz.0.841 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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 7d 6a 0c fe 48 8b 44 24 10 48 8b 38 e8 70 4f 07 fd 90 <0f> 0b e8 98 3b a2 fd 48 8b 7c 24 10 e8 5e 4f 07 fd 90 0f 0b 66 66
RSP: 0018:ffffc900103a72a8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100abd9788 RCX: f7d86dee41347b00
RDX: ffffc9000ccb1000 RSI: 0000000000002e36 RDI: 0000000000002e37
RBP: 0000000000000001 R08: ffffc900103a7027 R09: 1ffff92002074e04
R10: dffffc0000000000 R11: fffff52002074e05 R12: ffff888055ecbbd0
R13: ffff888055ecbc40 R14: ffff888055ecbc60 R15: 0000000000000000
FS:  00007f7e714816c0(0000) GS:ffff888125455000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005706e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_quota_change+0x391/0x800 fs/gfs2/quota.c:1305
 gfs2_alloc_blocks+0x18ca/0x2090 fs/gfs2/rgrp.c:2494
 alloc_dinode+0x252/0x560 fs/gfs2/inode.c:436
 gfs2_create_inode+0xc4a/0x1630 fs/gfs2/inode.c:822
 gfs2_atomic_open+0x116/0x200 fs/gfs2/inode.c:1402
 atomic_open+0x14f/0x370 fs/namei.c:4336
 lookup_open fs/namei.c:4449 [inline]
 open_last_lookups fs/namei.c:4583 [inline]
 path_openat+0x10e9/0x3860 fs/namei.c:4827
 do_file_open+0x23e/0x4a0 fs/namei.c:4859
 do_sys_openat2+0x113/0x200 fs/open.c:1366
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1383
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7e7059c629
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e71481028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f7e70815fa0 RCX: 00007f7e7059c629
RDX: 000000000000275a RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f7e70632b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7e70816038 R14: 00007f7e70815fa0 R15: 00007ffeb49d9438
 </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 7d 6a 0c fe 48 8b 44 24 10 48 8b 38 e8 70 4f 07 fd 90 <0f> 0b e8 98 3b a2 fd 48 8b 7c 24 10 e8 5e 4f 07 fd 90 0f 0b 66 66
RSP: 0018:ffffc900103a72a8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100abd9788 RCX: f7d86dee41347b00
RDX: ffffc9000ccb1000 RSI: 0000000000002e36 RDI: 0000000000002e37
RBP: 0000000000000001 R08: ffffc900103a7027 R09: 1ffff92002074e04
R10: dffffc0000000000 R11: fffff52002074e05 R12: ffff888055ecbbd0
R13: ffff888055ecbc40 R14: ffff888055ecbc60 R15: 0000000000000000
FS:  00007f7e714816c0(0000) GS:ffff888125455000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005706e000 CR4: 00000000003526f0