gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344
gfs2: fsid=syz:syz.0: pid: 7083
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:7083 [syz.2.309] gfs2_quota_sync+0x411/0x5a0 fs/gfs2/quota.c:1344
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1589!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7083 Comm: syz.2.309 Not tainted 6.6.99-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:add_to_queue fs/gfs2/glock.c:1589 [inline]
RIP: 0010:gfs2_glock_nq+0x113b/0x1420 fs/gfs2/glock.c:1614
Code: db 53 3d fe 41 0f b7 0e 48 c7 c7 e0 91 ef 8a 4c 89 e6 89 da e8 86 43 c2 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 35 74 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:ffffc90004bd7958 EFLAGS: 00010246
RAX: c48120c8c5abc700 RBX: 0000000000000008 RCX: 0000000000080000
RDX: ffffc9000d2cc000 RSI: 000000000001af34 RDI: 000000000001af35
RBP: ffff88805ffb9020 R08: ffffffff8e4a7cef R09: 1ffffffff1c94f9d
R10: dffffc0000000000 R11: fffffbfff1c94f9e R12: ffff88805efa1280
R13: ffff8880600a0318 R14: ffff8880600a035a R15: ffff8880600a0322
FS:  00007f3e0b85f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d80bff8 CR3: 000000002f344000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:252 [inline]
 do_sync+0x3c1/0xe00 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
 sync_filesystem+0xea/0x220 fs/sync.c:56
 gfs2_reconfigure+0xbb/0xb10 fs/gfs2/ops_fstype.c:1564
 reconfigure_super+0x21e/0x880 fs/super.c:1151
 do_remount fs/namespace.c:2900 [inline]
 path_mount+0xd19/0xfe0 fs/namespace.c:3685
 do_mount fs/namespace.c:3706 [inline]
 __do_sys_mount fs/namespace.c:3915 [inline]
 __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3892
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f3e0a99014a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f3e0b85ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3e0b85eef0 RCX: 00007f3e0a99014a
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007f3e0b85eef0 R09: 0000000001a4ec39
R10: 0000000001a4ec39 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007f3e0b85eeb0 R14: 0000000000000000 R15: 0000200000000100
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1589 [inline]
RIP: 0010:gfs2_glock_nq+0x113b/0x1420 fs/gfs2/glock.c:1614
Code: db 53 3d fe 41 0f b7 0e 48 c7 c7 e0 91 ef 8a 4c 89 e6 89 da e8 86 43 c2 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 35 74 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:ffffc90004bd7958 EFLAGS: 00010246
RAX: c48120c8c5abc700 RBX: 0000000000000008 RCX: 0000000000080000
RDX: ffffc9000d2cc000 RSI: 000000000001af34 RDI: 000000000001af35
RBP: ffff88805ffb9020 R08: ffffffff8e4a7cef R09: 1ffffffff1c94f9d
R10: dffffc0000000000 R11: fffffbfff1c94f9e R12: ffff88805efa1280
R13: ffff8880600a0318 R14: ffff8880600a035a R15: ffff8880600a0322
FS:  00007f3e0b85f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d80bff8 CR3: 000000002f344000 CR4: 00000000003506e0