program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./config\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./config\x00', &(0x7f0000000180)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000001c0)='./config/dlm\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./config/dlm/cluster1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./config/dlm/cluster1/comms/1\x00', 0x0)
r0 = openat(0xffffffffffffffff, &(0x7f00000003c0)='./config/dlm/cluster1/comms/1/addr\x00', 0x1, 0x0)
write(r0, &(0x7f0000000b40)='0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', 0x80)
mkdirat(0xffffffffffffff9c, &(0x7f0000000c40)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000c80)='./debug\x00', &(0x7f0000000cc0)='debugfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000d00)='./debug/dlm/comms/1/rawmsg\x00', 0x1, 0x0)
write(r1, &(0x7f0000000d40)='\x00'/16, 0x10)
rmdir(&(0x7f0000000d80)='./config/dlm/cluster1/comms/1\x00')
r2 = socket$nl_route(0x10, 0x3, 0x0)
r3 = socket(0x10, 0x803, 0x0)
syz_genetlink_get_family_id$mptcp(&(0x7f0000000a00), r3)
getsockname$packet(r0, &(0x7f0000000140)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000300)=0x14)
sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000400)=ANY=[@ANYRESOCT=r1, @ANYBLOB="bc3363ac6ab2e444677794c29fbe149c59fc2c7d40fc44baf39caaa6f8f51e001b", @ANYBLOB="019800000400"/17], 0x38}}, 0x44080)
r4 = socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r4, &(0x7f0000000000)={0xa, 0x4e22, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x55)
r5 = socket$nl_sock_diag(0x10, 0x3, 0x4)
r6 = socket$kcm(0x11, 0x3, 0x0)
r7 = openat$tun(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0)
ioctl$TUNSETIFF(r7, 0x400454ca, &(0x7f0000000480)={'syzkaller0\x00', 0x7001})
r8 = openat$tun(0xffffffffffffff9c, &(0x7f00000004c0), 0x200403, 0x0)
close(r8)
socket$nl_generic(0x10, 0x3, 0x10)
ioctl$SIOCSIFHWADDR(r8, 0x8914, &(0x7f0000000500)={'syzkaller0\x00', @multicast})
socket$unix(0x1, 0x5, 0x0)
ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000380)={'veth1_to_team\x00'})
setsockopt$sock_attach_bpf(r6, 0x107, 0xf, &(0x7f0000000580), 0x56)
[ 75.033941][ T5327] dlm: closing connection to node 1
[ 75.034264][ T5327] ------------[ cut here ]------------
[ 75.034274][ T5327] !con
[ 75.034289][ T5327] WARNING: fs/dlm/lowcomms.c:1455 at dlm_lowcomms_close+0x12d/0x440, CPU#0: syz.0.0/5327
[ 75.046147][ T5327] Modules linked in:
[ 75.048437][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 75.052410][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 75.056917][ T5327] RIP: 0010:dlm_lowcomms_close+0x12d/0x440
[ 75.059607][ T5327] Code: 99 a2 9f 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 82 21 12 01 eb a2 e8 7b a2 9f 00 eb 05 e8 74 a2 9f 00 90 <0f> 0b 90 44 89 f7 e8 18 b3 5b 01 b8 fe ff ff ff 48 83 c4 20 5b 41
[ 75.068146][ T5327] RSP: 0018:ffffc9000d177c40 EFLAGS: 00010283
[ 75.070806][ T5327] RAX: ffffffff81287f05 RBX: 0000000000000001 RCX: 0000000000100000
[ 75.074115][ T5327] RDX: ffffc9000eee2000 RSI: 0000000000000812 RDI: 0000000000000813
[ 75.077280][ T5327] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff97bc6048
[ 75.080901][ T5327] R10: 000000002a170a47 R11: 00000000474a209d R12: 0000000000000000
[ 75.084506][ T5327] R13: ffffffff81287e38 R14: 0000000000000000 R15: 0000000000000000
[ 75.087981][ T5327] FS: 00007f30f4ab46c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000
[ 75.091757][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 75.094631][ T5327] CR2: 00007f30f3df52e0 CR3: 0000000053ee6000 CR4: 0000000000352ef0
[ 75.098105][ T5327] Call Trace:
[ 75.099595][ T5327]
[ 75.101062][ T5327] ? dlm_midcomms_close+0x3a9/0x4c0
[ 75.103522][ T5327] ? dlm_midcomms_close+0x4b/0x4c0
[ 75.105856][ T5327] drop_comm+0x61/0x190
[ 75.107689][ T5327] ? configfs_rmdir+0x850/0x950
[ 75.109749][ T5327] ? __pfx_drop_comm+0x10/0x10
[ 75.111847][ T5327] configfs_rmdir+0x85f/0x950
[ 75.114071][ T5327] vfs_rmdir+0x3e6/0x6a0
[ 75.115827][ T5327] ? bpf_lsm_path_rmdir+0x9/0x20
[ 75.117705][ T5327] filename_rmdir+0x292/0x520
[ 75.119735][ T5327] ? __pfx_filename_rmdir+0x10/0x10
[ 75.121978][ T5327] ? do_getname+0x151/0x250
[ 75.124022][ T5327] __se_sys_rmdir+0x2e/0x140
[ 75.126001][ T5327] do_syscall_64+0x166/0x520
[ 75.127934][ T5327] ? trace_irq_disable+0x3b/0x140
[ 75.131255][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.133867][ T5327] ? clear_bhb_loop+0x70/0xc0
[ 75.135809][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.138096][ T5327] RIP: 0033:0x7f30f3b9e559
[ 75.139889][ T5327] 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
[ 75.150072][ T5327] RSP: 002b:00007f30f4ab3fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
[ 75.153556][ T5327] RAX: ffffffffffffffda RBX: 00007f30f3e25fa0 RCX: 00007f30f3b9e559
[ 75.156905][ T5327] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000d80
[ 75.160002][ T5327] RBP: 00007f30f3c358b0 R08: 0000000000000000 R09: 0000000000000000
[ 75.163207][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 75.166526][ T5327] R13: 00007f30f3e26038 R14: 00007f30f3e25fa0 R15: 00007ffe1ea62a38
[ 75.169877][ T5327]
[ 75.171264][ T5327] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 75.174267][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 75.178190][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 75.182506][ T5327] Call Trace:
[ 75.183968][ T5327]
[ 75.185276][ T5327] vpanic+0x56d/0xa60
[ 75.187079][ T5327] ? __pfx__printk+0x10/0x10
[ 75.189124][ T5327] ? __pfx_vpanic+0x10/0x10
[ 75.191191][ T5327] ? is_bpf_text_address+0x292/0x2b0
[ 75.193346][ T5327] ? is_bpf_text_address+0x26/0x2b0
[ 75.195560][ T5327] panic+0xc5/0xd0
[ 75.197221][ T5327] ? __pfx_panic+0x10/0x10
[ 75.199196][ T5327] __warn+0x315/0x4c0
[ 75.200985][ T5327] ? dlm_lowcomms_close+0x12d/0x440
[ 75.203308][ T5327] ? dlm_lowcomms_close+0x12d/0x440
[ 75.205660][ T5327] __report_bug+0x276/0x570
[ 75.207703][ T5327] ? check_path+0x21/0x40
[ 75.209593][ T5327] ? dlm_lowcomms_close+0x12d/0x440
[ 75.211939][ T5327] ? __pfx___report_bug+0x10/0x10
[ 75.214085][ T5327] ? lockdep_unlock+0x5c/0xd0
[ 75.215900][ T5327] ? __lock_acquire+0x1511/0x2de0
[ 75.217882][ T5327] ? dlm_lowcomms_close+0x12d/0x440
[ 75.219897][ T5327] report_bug+0x16b/0x220
[ 75.221601][ T5327] ? dlm_lowcomms_close+0x12d/0x440
[ 75.223737][ T5327] ? dlm_lowcomms_close+0x12f/0x440
[ 75.225805][ T5327] handle_bug+0x9c/0x200
[ 75.227406][ T5327] exc_invalid_op+0x1a/0x50
[ 75.229232][ T5327] asm_exc_invalid_op+0x1a/0x20
[ 75.231202][ T5327] RIP: 0010:dlm_lowcomms_close+0x12d/0x440
[ 75.233634][ T5327] Code: 99 a2 9f 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 82 21 12 01 eb a2 e8 7b a2 9f 00 eb 05 e8 74 a2 9f 00 90 <0f> 0b 90 44 89 f7 e8 18 b3 5b 01 b8 fe ff ff ff 48 83 c4 20 5b 41
[ 75.241852][ T5327] RSP: 0018:ffffc9000d177c40 EFLAGS: 00010283
[ 75.244517][ T5327] RAX: ffffffff81287f05 RBX: 0000000000000001 RCX: 0000000000100000
[ 75.247790][ T5327] RDX: ffffc9000eee2000 RSI: 0000000000000812 RDI: 0000000000000813
[ 75.251183][ T5327] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff97bc6048
[ 75.254607][ T5327] R10: 000000002a170a47 R11: 00000000474a209d R12: 0000000000000000
[ 75.257966][ T5327] R13: ffffffff81287e38 R14: 0000000000000000 R15: 0000000000000000
[ 75.261420][ T5327] ? dlm_lowcomms_close+0x58/0x440
[ 75.263643][ T5327] ? dlm_lowcomms_close+0x125/0x440
[ 75.265871][ T5327] ? dlm_midcomms_close+0x3a9/0x4c0
[ 75.268140][ T5327] ? dlm_midcomms_close+0x4b/0x4c0
[ 75.270305][ T5327] drop_comm+0x61/0x190
[ 75.272136][ T5327] ? configfs_rmdir+0x850/0x950
[ 75.274232][ T5327] ? __pfx_drop_comm+0x10/0x10
[ 75.276322][ T5327] configfs_rmdir+0x85f/0x950
[ 75.278381][ T5327] vfs_rmdir+0x3e6/0x6a0
[ 75.280290][ T5327] ? bpf_lsm_path_rmdir+0x9/0x20
[ 75.282424][ T5327] filename_rmdir+0x292/0x520
[ 75.284440][ T5327] ? __pfx_filename_rmdir+0x10/0x10
[ 75.286687][ T5327] ? do_getname+0x151/0x250
[ 75.288727][ T5327] __se_sys_rmdir+0x2e/0x140
[ 75.290775][ T5327] do_syscall_64+0x166/0x520
[ 75.292794][ T5327] ? trace_irq_disable+0x3b/0x140
[ 75.294993][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.297740][ T5327] ? clear_bhb_loop+0x70/0xc0
[ 75.299810][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.302356][ T5327] RIP: 0033:0x7f30f3b9e559
[ 75.304335][ T5327] 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
[ 75.312910][ T5327] RSP: 002b:00007f30f4ab3fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
[ 75.316289][ T5327] RAX: ffffffffffffffda RBX: 00007f30f3e25fa0 RCX: 00007f30f3b9e559
[ 75.319469][ T5327] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000d80
[ 75.322948][ T5327] RBP: 00007f30f3c358b0 R08: 0000000000000000 R09: 0000000000000000
[ 75.326144][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 75.329678][ T5327] R13: 00007f30f3e26038 R14: 00007f30f3e25fa0 R15: 00007ffe1ea62a38
[ 75.333222][ T5327]
[ 75.335041][ T5327] Kernel Offset: disabled
[ 75.337131][ T5327] Rebooting in 86400 seconds..