gfs2: pid: 7957
gfs2: lock type: 8 req lock state : 1
gfs2: G:  s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20
gfs2:  H: s:EX f:cH e:0 p:7957 [syz-executor129] gfs2_glock_nq_init fs/gfs2/glock.h:226 [inline]
gfs2:  H: s:EX f:cH e:0 p:7957 [syz-executor129] do_sync+0x3f0/0xba0 fs/gfs2/quota.c:893
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1082!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7957 Comm: syz-executor129 Not tainted 4.14.300-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
task: ffff8880b377a400 task.stack: ffff888094ef0000
RIP: 0010:add_to_queue fs/gfs2/glock.c:1082 [inline]
RIP: 0010:gfs2_glock_nq.cold+0x279/0x2d0 fs/gfs2/glock.c:1107
RSP: 0018:ffff888094ef7978 EFLAGS: 00010292
RAX: ffffed10129def10 RBX: ffff8880b444d2a0 RCX: 1ffff110166ef5a5
RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffffffff87c0e290
RBP: 0000000000001f15 R08: 0000000000000044 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a8f28e78
R13: ffff8880b444d2a0 R14: 0000000000000001 R15: 0000000000000000
FS:  000055555571e300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f347a892140 CR3: 00000000b28c6000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 gfs2_glock_nq_init fs/gfs2/glock.h:228 [inline]
 do_sync+0x3f8/0xba0 fs/gfs2/quota.c:893
 gfs2_quota_sync+0x4f1/0x690 fs/gfs2/quota.c:1299
 gfs2_sync_fs+0x40/0xa0 fs/gfs2/super.c:947
 __sync_filesystem fs/sync.c:39 [inline]
 sync_filesystem fs/sync.c:64 [inline]
 sync_filesystem+0xe2/0x230 fs/sync.c:48
 generic_shutdown_super+0x70/0x370 fs/super.c:432
 kill_block_super+0x95/0xe0 fs/super.c:1161
 gfs2_kill_sb+0x12c/0x1a0 fs/gfs2/ops_fstype.c:1414
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 deactivate_super+0x7f/0xa0 fs/super.c:350
 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xa44/0x2850 kernel/exit.c:868
 do_group_exit+0x100/0x2e0 kernel/exit.c:965
 SYSC_exit_group kernel/exit.c:976 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:974
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
Code: c1 ea 03 0f b6 04 02 84 c0 74 04 3c 03 7e 6c 8b 73 18 44 89 f2 48 c7 c7 60 c0 c0 87 e8 dc 82 f9 ff 4c 89 ee 31 ff e8 43 e5 b0 fb <0f> 0b e8 6c 74 75 fa 4c 8b 04 24 e9 ac fd ff ff 31 ed e9 14 fe 
RIP: add_to_queue fs/gfs2/glock.c:1082 [inline] RSP: ffff888094ef7978
RIP: gfs2_glock_nq.cold+0x279/0x2d0 fs/gfs2/glock.c:1107 RSP: ffff888094ef7978
---[ end trace b5997e84d8bb2f9a ]---