dlm: closing connection to node 1
------------[ cut here ]------------
!con
WARNING: fs/dlm/lowcomms.c:1455 at dlm_lowcomms_close+0x3d/0x21b fs/dlm/lowcomms.c:1455, CPU#2: syz.0.17/5921
Modules linked in:
CPU: 2 UID: 0 PID: 5921 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:dlm_lowcomms_close+0x3d/0x21b fs/dlm/lowcomms.c:1455
Code: 89 ee 48 c7 c7 40 07 0d 8c e8 ff 61 fc ff e8 da f8 ff ff 31 f6 89 ef 41 89 c4 e8 ae 5a a3 01 48 85 c0 75 1b e8 e4 75 e4 00 90 <0f> 0b 90 44 89 e7 bb fe ff ff ff e8 43 f8 ff ff e9 b5 01 00 00 48
RSP: 0018:ffffc90003be7ba8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880298fa580 RSI: ffffffff8125e80c RDI: ffff8880298fa580
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000001f R12: 0000000000000000
R13: 0000000000000001 R14: ffffed10043459f0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888096ba9000(0063) knlGS:00000000574f2480
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007f21cdbede9c CR3: 0000000053e8e000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 dlm_midcomms_close+0x312/0x590 fs/dlm/midcomms.c:1443
 drop_comm+0x62/0x1a0 fs/dlm/config.c:556
 client_drop_item+0xa6/0x100 fs/configfs/dir.c:970
 configfs_rmdir+0x5d3/0x950 fs/configfs/dir.c:1567
 vfs_rmdir fs/namei.c:5515 [inline]
 vfs_rmdir+0x328/0x8a0 fs/namei.c:5488
 filename_rmdir+0x31a/0x5c0 fs/namei.c:5572
 __do_sys_unlinkat fs/namei.c:5747 [inline]
 __se_sys_unlinkat fs/namei.c:5740 [inline]
 __ia32_sys_unlinkat+0xf5/0x130 fs/namei.c:5740
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf70befec
Code: Unable to access opcode bytes at 0xf70befc2.
RSP: 002b:00000000ff8cb84c EFLAGS: 00000292 ORIG_RAX: 000000000000012d
RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000800001c0
RDX: 0000000000000200 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>