dlm: closing connection to node 1
------------[ cut here ]------------
!con
WARNING: fs/dlm/lowcomms.c:1455 at dlm_lowcomms_close+0x12d/0x440 fs/dlm/lowcomms.c:1455, CPU#0: syz.0.0/5334
Modules linked in:
CPU: 0 UID: 0 PID: 5334 Comm: syz.0.0 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:dlm_lowcomms_close+0x12d/0x440 fs/dlm/lowcomms.c:1455
Code: 49 a3 9f 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 32 1f 12 01 eb a2 e8 2b a3 9f 00 eb 05 e8 24 a3 9f 00 90 <0f> 0b 90 44 89 f7 e8 78 b3 5b 01 b8 fe ff ff ff 48 83 c4 20 5b 41
RSP: 0018:ffffc9000f707c40 EFLAGS: 00010293
RAX: ffffffff81287f05 RBX: 0000000000000001 RCX: ffff8880347e8000
RDX: 0000000000000000 RSI: ffffffff8e6f54e3 RDI: ffffffff8c6dec80
RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff97bcf5e8
R10: 0000000085b20c4b R11: 00000000a80b3689 R12: 0000000000000000
R13: ffffffff81287e38 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f6e2adf56c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffffffff000 CR3: 0000000044c44000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 drop_comm+0x61/0x190 fs/dlm/config.c:556
 client_drop_item fs/configfs/dir.c:979 [inline]
 configfs_rmdir+0x85f/0x950 fs/configfs/dir.c:1576
 vfs_rmdir+0x3e6/0x6a0 fs/namei.c:5514
 filename_rmdir+0x292/0x520 fs/namei.c:5571
 __do_sys_rmdir fs/namei.c:5594 [inline]
 __se_sys_rmdir+0x2e/0x140 fs/namei.c:5591
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6e2e99e559
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:00007f6e2adf4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007f6e2ec26360 RCX: 00007f6e2e99e559
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000580
RBP: 00007f6e2ea35ab8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6e2ec263f8 R14: 00007f6e2ec26360 R15: 00007ffdd3ca7608
 </TASK>