gfs2: fsid=statfs_quantum.s:  H: s:SH f:aH e:0 p:5886 [syz.0.17] statfs_by_dentry fs/statfs.c:66 [inline]
gfs2: fsid=statfs_quantum.s:  H: s:SH f:aH e:0 p:5886 [syz.0.17] vfs_get_fsid+0x1ce/0x2e0 fs/statfs.c:77
gfs2: fsid=statfs_quantum.s:  R: n:18 f:80000000 b:0/0 i:0 q:0 r:0 e:0
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1478!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5886 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:add_to_queue fs/gfs2/glock.c:1478 [inline]
RIP: 0010:gfs2_glock_nq+0x1254/0x15f0 fs/gfs2/glock.c:1520
Code: 92 9e 10 fe 0f b7 0b 48 c7 c7 a0 fe 19 8c 4c 89 fe 89 ea e8 9e af 05 fd 31 ff 48 8b 74 24 20 ba 01 00 00 00 e8 ad 70 ff ff 90 <0f> 0b 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 60 ee ff ff 4c 89 ff e8
RSP: 0018:ffffc900023df978 EFLAGS: 00010246
RAX: eba9f85af6c3e500 RBX: ffff888040c06092 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff5200047bf24
RBP: 0000000000000003 R08: ffff888059859b73 R09: 0000000000000000
R10: fffff5200047bee0 R11: ffffed100b30b36f R12: ffff888040c06022
R13: ffff888040c06088 R14: ffff888045b20fb8 R15: ffff8880127fd048
FS:  00007fd58b2ed6c0(0000) GS:ffff88808c881000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558252b4a0 CR3: 00000000120ab000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:253 [inline]
 gfs2_statfs_slow fs/gfs2/super.c:897 [inline]
 gfs2_statfs+0x437/0xa70 fs/gfs2/super.c:971
 statfs_by_dentry fs/statfs.c:66 [inline]
 vfs_get_fsid+0x1ce/0x2e0 fs/statfs.c:77
 fanotify_test_fsid+0x8f/0x3c0 fs/notify/fanotify/fanotify_user.c:1758
 do_fanotify_mark+0x9c4/0x1040 fs/notify/fanotify/fanotify_user.c:2057
 __do_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2155 [inline]
 __se_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2151 [inline]
 __x64_sys_fanotify_mark+0xb5/0xd0 fs/notify/fanotify/fanotify_user.c:2151
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd58a39a539
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd58b2ed028 EFLAGS: 00000246 ORIG_RAX: 000000000000012d
RAX: ffffffffffffffda RBX: 00007fd58a605fa0 RCX: 00007fd58a39a539
RDX: 000000004800003e RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007fd58a42dee0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd58a606038 R14: 00007fd58a605fa0 R15: 00007ffcd3adc418
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1478 [inline]
RIP: 0010:gfs2_glock_nq+0x1254/0x15f0 fs/gfs2/glock.c:1520
Code: 92 9e 10 fe 0f b7 0b 48 c7 c7 a0 fe 19 8c 4c 89 fe 89 ea e8 9e af 05 fd 31 ff 48 8b 74 24 20 ba 01 00 00 00 e8 ad 70 ff ff 90 <0f> 0b 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 60 ee ff ff 4c 89 ff e8
RSP: 0018:ffffc900023df978 EFLAGS: 00010246
RAX: eba9f85af6c3e500 RBX: ffff888040c06092 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff5200047bf24
RBP: 0000000000000003 R08: ffff888059859b73 R09: 0000000000000000
R10: fffff5200047bee0 R11: ffffed100b30b36f R12: ffff888040c06022
R13: ffff888040c06088 R14: ffff888045b20fb8 R15: ffff8880127fd048
FS:  00007fd58b2ed6c0(0000) GS:ffff88808c881000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558252b4a0 CR3: 00000000120ab000 CR4: 0000000000352ef0