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: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
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 fd 97 22 fe 48 8b 44 24 10 48 8b 38 e8 80 63 24 fd 90 <0f> 0b e8 48 ed ba fd 48 8b 7c 24 10 e8 6e 63 24 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000eeb7948 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff11003f9920e RCX: 921e6260df8a1700
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffffffffffffff R08: ffffc9000eeb76c7 R09: 1ffff92001dd6ed8
R10: dffffc0000000000 R11: fffff52001dd6ed9 R12: ffff88801fcc9000
R13: ffff88801fcc9070 R14: ffff88801fcc9090 R15: 0000000000000000
FS:  00007fbca1b796c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe4b2e6f00 CR3: 000000003eeb0000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_quota_change+0x466/0x800 fs/gfs2/quota.c:1304
 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+0x40c/0x5b0 fs/open.c:788
 do_fchownat+0x161/0x270 fs/open.c:819
 __do_sys_lchown fs/open.c:844 [inline]
 __se_sys_lchown fs/open.c:842 [inline]
 __x64_sys_lchown+0x85/0xa0 fs/open.c:842
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbca0d8f7c9
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:00007fbca1b79038 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007fbca0fe6090 RCX: 00007fbca0d8f7c9
RDX: 0000000039323420 RSI: 00000000706d6174 RDI: 00002000000001c0
RBP: 00007fbca0e13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbca0fe6128 R14: 00007fbca0fe6090 R15: 00007ffe4b2e78b8
 </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 fd 97 22 fe 48 8b 44 24 10 48 8b 38 e8 80 63 24 fd 90 <0f> 0b e8 48 ed ba fd 48 8b 7c 24 10 e8 6e 63 24 fd 90 0f 0b 66 66
RSP: 0018:ffffc9000eeb7948 EFLAGS: 00010246
RAX: 000000000000002c RBX: 1ffff11003f9920e RCX: 921e6260df8a1700
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: ffffffffffffffff R08: ffffc9000eeb76c7 R09: 1ffff92001dd6ed8
R10: dffffc0000000000 R11: fffff52001dd6ed9 R12: ffff88801fcc9000
R13: ffff88801fcc9070 R14: ffff88801fcc9090 R15: 0000000000000000
FS:  00007fbca1b796c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe4b2e6f00 CR3: 000000003eeb0000 CR4: 0000000000352ef0