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: 20233 Comm: syz.1.3082 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
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 dd 7a 19 fe 48 8b 44 24 10 48 8b 38 e8 90 24 19 fd 90 <0f> 0b e8 88 5c b1 fd 48 8b 7c 24 10 e8 7e 24 19 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000b39f2a8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100ee63a62 RCX: 2c8094693f8ecb00
RDX: ffffc9001b594000 RSI: 0000000000003c06 RDI: 0000000000003c07
RBP: 0000000000000001 R08: ffffc9000b39f027 R09: 1ffff92001673e04
R10: dffffc0000000000 R11: fffff52001673e05 R12: ffff88807731d2a0
R13: ffff88807731d310 R14: ffff88807731d330 R15: 0000000000000000
FS:  00007fb9ed18e6c0(0000) GS:ffff8881256ef000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30805ff8 CR3: 0000000077980000 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+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9ec39acb9
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:00007fb9ed18e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fb9ec616090 RCX: 00007fb9ec39acb9
RDX: 0000000000020043 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007fb9ec408bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000000b2 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb9ec616128 R14: 00007fb9ec616090 R15: 00007ffc04adb638
 </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 dd 7a 19 fe 48 8b 44 24 10 48 8b 38 e8 90 24 19 fd 90 <0f> 0b e8 88 5c b1 fd 48 8b 7c 24 10 e8 7e 24 19 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000b39f2a8 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100ee63a62 RCX: 2c8094693f8ecb00
RDX: ffffc9001b594000 RSI: 0000000000003c06 RDI: 0000000000003c07
RBP: 0000000000000001 R08: ffffc9000b39f027 R09: 1ffff92001673e04
R10: dffffc0000000000 R11: fffff52001673e05 R12: ffff88807731d2a0
R13: ffff88807731d310 R14: ffff88807731d330 R15: 0000000000000000
FS:  00007fb9ed18e6c0(0000) GS:ffff8881256ef000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30805ff8 CR3: 0000000077980000 CR4: 00000000003526f0