gfs2: fsid=syz:syz.s: G:  s:SH n:3/12 f:aqon t:SH d:EX/0 a:0 v:0 r:3 m:20 p:0
gfs2: fsid=syz:syz.s:  H: s:SH f:aH e:0 p:5878 [syz.0.17] statfs_by_dentry fs/statfs.c:66 [inline]
gfs2: fsid=syz:syz.s:  H: s:SH f:aH e:0 p:5878 [syz.0.17] vfs_get_fsid+0x1ce/0x2e0 fs/statfs.c:77
gfs2: fsid=syz:syz.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 PTI
CPU: 0 UID: 0 PID: 5878 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:add_to_queue fs/gfs2/glock.c:1478 [inline]
RIP: 0010:gfs2_glock_nq+0x124f/0x15f0 fs/gfs2/glock.c:1520
Code: f1 0f fe 41 0f b7 0e 48 c7 c7 40 76 9a 8b 48 89 de 89 ea e8 43 64 06 fd 31 ff 48 8b 74 24 28 ba 01 00 00 00 e8 22 70 ff ff 90 <0f> 0b 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 73 ee ff ff 4c 89 f7 e8
RSP: 0018:ffffc90002f1f988 EFLAGS: 00010246
RAX: fda1c016f5197e00 RBX: ffff8880350113e0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520005e3f24
RBP: 0000000000000003 R08: ffffffff8f8c95f7 R09: 0000000000000000
R10: fffff520005e3ee0 R11: fffffbfff1f192bf R12: 1ffff11006690c03
R13: ffff888033486088 R14: ffff888033486092 R15: ffff888033486088
FS:  000055558b8bb500(0000) GS:ffff888125eca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33e63fff CR3: 000000004211c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:253 [inline]
 gfs2_statfs_slow fs/gfs2/super.c:898 [inline]
 gfs2_statfs+0x564/0xbb0 fs/gfs2/super.c:972
 statfs_by_dentry fs/statfs.c:66 [inline]
 vfs_get_fsid+0x1ce/0x2e0 fs/statfs.c:77
 fanotify_test_fsid+0x8f/0x3d0 fs/notify/fanotify/fanotify_user.c:1739
 do_fanotify_mark+0x9a8/0x1020 fs/notify/fanotify/fanotify_user.c:2038
 __do_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2136 [inline]
 __se_sys_fanotify_mark fs/notify/fanotify/fanotify_user.c:2132 [inline]
 __x64_sys_fanotify_mark+0xb5/0xd0 fs/notify/fanotify/fanotify_user.c:2132
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb2b31bce59
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:00007ffd6aa9a888 EFLAGS: 00000246 ORIG_RAX: 000000000000012d
RAX: ffffffffffffffda RBX: 00007fb2b3435fa0 RCX: 00007fb2b31bce59
RDX: 000000004800003e RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007fb2b3252e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb2b3435fac R14: 00007fb2b3435fa0 R15: 00007fb2b3435fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1478 [inline]
RIP: 0010:gfs2_glock_nq+0x124f/0x15f0 fs/gfs2/glock.c:1520
Code: f1 0f fe 41 0f b7 0e 48 c7 c7 40 76 9a 8b 48 89 de 89 ea e8 43 64 06 fd 31 ff 48 8b 74 24 28 ba 01 00 00 00 e8 22 70 ff ff 90 <0f> 0b 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 73 ee ff ff 4c 89 f7 e8
RSP: 0018:ffffc90002f1f988 EFLAGS: 00010246
RAX: fda1c016f5197e00 RBX: ffff8880350113e0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff520005e3f24
RBP: 0000000000000003 R08: ffffffff8f8c95f7 R09: 0000000000000000
R10: fffff520005e3ee0 R11: fffffbfff1f192bf R12: 1ffff11006690c03
R13: ffff888033486088 R14: ffff888033486092 R15: ffff888033486088
FS:  000055558b8bb500(0000) GS:ffff888125eca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33e63fff CR3: 000000004211c000 CR4: 00000000003526f0