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: 13744 Comm: syz.2.2121 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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 8d 15 22 fe 48 8b 44 24 10 48 8b 38 e8 f0 6f 24 fd 90 <0f> 0b e8 a8 b9 bb fd 48 8b 7c 24 10 e8 de 6f 24 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000be9f948 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100b04ffb2 RCX: 75633c52340d2a00
RDX: ffffc9000e341000 RSI: 00000000000045c1 RDI: 00000000000045c2
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa00 R12: ffff88805827fd20
R13: ffff88805827fd90 R14: ffff88805827fdb0 R15: 0000000000000000
FS:  00007f4d3bdd56c0(0000) GS:ffff888125c2d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30c23ffc CR3: 00000000322e0000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_quota_change+0x466/0x800 fs/gfs2/quota.c:1305
 setattr_chown+0x418/0x570 fs/gfs2/inode.c:2062
 gfs2_setattr+0x217/0x3f0 fs/gfs2/inode.c:2114
 notify_change+0xc1a/0xf40 fs/attr.c:546
 chown_common+0x441/0x670 fs/open.c:788
 do_fchownat+0x161/0x270 fs/open.c:819
 __do_sys_chown fs/open.c:839 [inline]
 __se_sys_chown fs/open.c:837 [inline]
 __x64_sys_chown+0x82/0xa0 fs/open.c:837
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d3db8f749
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:00007f4d3bdd5038 EFLAGS: 00000246 ORIG_RAX: 000000000000005c
RAX: ffffffffffffffda RBX: 00007f4d3dde6090 RCX: 00007f4d3db8f749
RDX: 000000000000000a RSI: 000000003a736e6f RDI: 0000200000000080
RBP: 00007f4d3dc13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4d3dde6128 R14: 00007f4d3dde6090 R15: 00007ffcf6b7f7a8
 </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 8d 15 22 fe 48 8b 44 24 10 48 8b 38 e8 f0 6f 24 fd 90 <0f> 0b e8 a8 b9 bb fd 48 8b 7c 24 10 e8 de 6f 24 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000be9f948 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff1100b04ffb2 RCX: 75633c52340d2a00
RDX: ffffc9000e341000 RSI: 00000000000045c1 RDI: 00000000000045c2
RBP: ffffffffffffffff R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa00 R12: ffff88805827fd20
R13: ffff88805827fd90 R14: ffff88805827fdb0 R15: 0000000000000000
FS:  00007f4d3bdd56c0(0000) GS:ffff888125c2d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30c23ffc CR3: 00000000322e0000 CR4: 00000000003526f0