gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344
gfs2: fsid=syz:syz.0: pid: 6344
gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1
gfs2: fsid=syz:syz.0: G:  s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 p:0
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:6344 [poweroff] gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1587!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6344 Comm: poweroff Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:add_to_queue fs/gfs2/glock.c:1587 [inline]
RIP: 0010:gfs2_glock_nq+0x113b/0x1420 fs/gfs2/glock.c:1612
Code: 8b 33 36 fe 41 0f b7 0e 48 c7 c7 60 a7 0f 8b 4c 89 e6 89 da e8 96 db cf 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 b5 70 ff ff <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 45 f1 ff ff 4c 89 f7
RSP: 0018:ffffc9000c58fb58 EFLAGS: 00010246
RAX: f5d29261e9360600 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520018b1f60
RBP: ffff88805ee0fbe0 R08: 0000000000000004 R09: 0000000000000004
R10: fffff520018b1f1c R11: fffffbfff1d15bd6 R12: ffff888025455280
R13: ffff888060248d18 R14: ffff888060248d5a R15: ffff888060248d22
FS:  00007f9b370c1c80(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb27f558000 CR3: 0000000075dec000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:252 [inline]
 do_sync+0x407/0xe50 fs/gfs2/quota.c:912
 gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344
 gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:670
 iterate_supers+0xb2/0x170 fs/super.c:979
 ksys_sync+0xb0/0x170 fs/sync.c:103
 __ia32_sys_sync+0xe/0x20 fs/sync.c:113
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9b37288f37
Code: 73 01 c3 48 8b 0d c1 1e 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a2 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 1e 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd74bfe288 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9b37288f37
RDX: ffffffffffffff88 RSI: 00007f9b37421e51 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd74bfe3e8 R14: 00007f9b37463000 R15: 000055de060a4d98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1587 [inline]
RIP: 0010:gfs2_glock_nq+0x113b/0x1420 fs/gfs2/glock.c:1612
Code: 8b 33 36 fe 41 0f b7 0e 48 c7 c7 60 a7 0f 8b 4c 89 e6 89 da e8 96 db cf 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 b5 70 ff ff <0f> 0b 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 45 f1 ff ff 4c 89 f7
RSP: 0018:ffffc9000c58fb58 EFLAGS: 00010246
RAX: f5d29261e9360600 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520018b1f60
RBP: ffff88805ee0fbe0 R08: 0000000000000004 R09: 0000000000000004
R10: fffff520018b1f1c R11: fffffbfff1d15bd6 R12: ffff888025455280
R13: ffff888060248d18 R14: ffff888060248d5a R15: ffff888060248d22
FS:  00007f9b370c1c80(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb27f558000 CR3: 0000000075dec000 CR4: 00000000003506f0