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:5199 [syz-executor.0] gfs2_quota_sync+0x419/0x630 fs/gfs2/quota.c:1370
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1560!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 5199 Comm: syz-executor.0 Not tainted 6.9.0-rc3-syzkaller-00208-g586b5dfb51b9 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 fs/gfs2/glock.c:1604
Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 60 aa 59 8b e8 46 2e b5 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 06 4f ff ff 90 <0f> 0b e8 7e 8d d4 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 ec
RSP: 0018:ffffc90003317a48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888044b7c960 RCX: fffff52000662efa
RDX: ffff88801c9d4880 RSI: ffffffff83b89c8b RDI: ffffffff8b59e1b0
RBP: ffff888043589270 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000005 R12: ffff888044c8c000
R13: 000000000000144f R14: ffff888044b7c9e0 R15: ffff888020d02400
FS:  00005555829d4480(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555829dd938 CR3: 0000000044c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline]
 do_sync+0x45a/0xd30 fs/gfs2/quota.c:946
 gfs2_quota_sync+0x419/0x630 fs/gfs2/quota.c:1370
 gfs2_sync_fs+0x44/0xb0 fs/gfs2/super.c:669
 sync_filesystem+0x10d/0x290 fs/sync.c:56
 generic_shutdown_super+0x7e/0x3d0 fs/super.c:620
 kill_block_super+0x3b/0x90 fs/super.c:1675
 gfs2_kill_sb+0x360/0x410 fs/gfs2/ops_fstype.c:1804
 deactivate_locked_super+0xbe/0x1a0 fs/super.c:472
 deactivate_super+0xde/0x100 fs/super.c:505
 cleanup_mnt+0x222/0x450 fs/namespace.c:1267
 task_work_run+0x14e/0x250 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff0fb67f197
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffce3861af8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff0fb67f197
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce3861bb0
RBP: 00007ffce3861bb0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffce3862c70
R13: 00007ff0fb6c93b9 R14: 000000000000e8d8 R15: 0000000000000007
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0xc7b/0x1cd0 fs/gfs2/glock.c:1604
Code: 03 0f 8e 56 0d 00 00 8b 53 18 48 89 ee 48 c7 c7 60 aa 59 8b e8 46 2e b5 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 06 4f ff ff 90 <0f> 0b e8 7e 8d d4 fd 48 8b 7c 24 18 49 8d ac 24 80 00 00 00 e8 ec
RSP: 0018:ffffc90003317a48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888044b7c960 RCX: fffff52000662efa
RDX: ffff88801c9d4880 RSI: ffffffff83b89c8b RDI: ffffffff8b59e1b0
RBP: ffff888043589270 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000005 R12: ffff888044c8c000
R13: 000000000000144f R14: ffff888044b7c9e0 R15: ffff888020d02400
FS:  00005555829d4480(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555829dd938 CR3: 0000000044c8a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400