program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000040)='./config\x00', &(0x7f0000000080)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./config/dlm\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/dlm/cluster1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000140)='./config/dlm/cluster1/comms/1\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./debug\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='0200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', 0x80)
mkdirat(0xffffffffffffff9c, &(0x7f0000000380)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f00000003c0)='./debug\x00', &(0x7f0000000400)='debugfs\x00', 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000440)='./debug/dlm/comms/1/rawmsg\x00', 0x1, 0x0)
write(r1, &(0x7f0000000480)='\x00'/16, 0x10)
bpf$BPF_BTF_LOAD(0x12, &(0x7f00000001c0)={&(0x7f0000000500)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x30, 0x30, 0x8, [@enum, @typedef={0x6, 0x0, 0x0, 0x8, 0x3}, @func={0x2, 0x0, 0x0, 0xc, 0x4}, @func_proto]}, {0x0, [0x0, 0x61, 0x5f, 0x0, 0x0, 0x61]}}, 0x0, 0x50}, 0x28)
rmdir(&(0x7f00000004c0)='./config/dlm/cluster1/comms/1\x00')
prctl$PR_SET_TAGGED_ADDR_CTRL(0x37, 0x1)
r2 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a)
getsockopt(r2, 0x400000000000003a, 0x1, 0x0, &(0x7f0000000240))
[ 93.232080][ T4646] Bluetooth: hci0: command tx timeout
[ 93.276527][ T9] cfg80211: failed to load regulatory.db
[ 93.632436][ T5321] dlm: closing connection to node 1
[ 93.633295][ T5321] ------------[ cut here ]------------
[ 93.633302][ T5321] !con
[ 93.633305][ T5321] WARNING: fs/dlm/lowcomms.c:1455 at dlm_lowcomms_close+0x12d/0x440, CPU#0: syz.0.0/5321
[ 93.643696][ T5321] Modules linked in:
[ 93.646163][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 93.650093][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 93.654721][ T5321] RIP: 0010:dlm_lowcomms_close+0x12d/0x440
[ 93.657828][ T5321] Code: a9 a2 9f 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 92 21 12 01 eb a2 e8 8b a2 9f 00 eb 05 e8 84 a2 9f 00 90 <0f> 0b 90 44 89 f7 e8 28 b3 5b 01 b8 fe ff ff ff 48 83 c4 20 5b 41
[ 93.667308][ T5321] RSP: 0018:ffffc9000e517c40 EFLAGS: 00010283
[ 93.670967][ T5321] RAX: ffffffff81287f05 RBX: 0000000000000001 RCX: 0000000000100000
[ 93.674539][ T5321] RDX: ffffc9000eeba000 RSI: 000000000000080c RDI: 000000000000080d
[ 93.678034][ T5321] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff97bd51c8
[ 93.681585][ T5321] R10: 00000000e7fab97c R11: 00000000d89b56f7 R12: 0000000000000000
[ 93.684884][ T5321] R13: ffffffff81287e38 R14: 0000000000000000 R15: 0000000000000000
[ 93.688123][ T5321] FS: 00007f4a6438c6c0(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000
[ 93.692007][ T5321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 93.694848][ T5321] CR2: 00007f4a637f52e0 CR3: 0000000013b49000 CR4: 0000000000352ef0
[ 93.698377][ T5321] Call Trace:
[ 93.699795][ T5321]
[ 93.701098][ T5321] ? dlm_midcomms_close+0x3a9/0x4c0
[ 93.703448][ T5321] ? dlm_midcomms_close+0x4b/0x4c0
[ 93.705659][ T5321] drop_comm+0x61/0x190
[ 93.707541][ T5321] ? configfs_rmdir+0x850/0x950
[ 93.709768][ T5321] ? __pfx_drop_comm+0x10/0x10
[ 93.712015][ T5321] configfs_rmdir+0x85f/0x950
[ 93.714140][ T5321] vfs_rmdir+0x3e6/0x6a0
[ 93.716061][ T5321] ? bpf_lsm_path_rmdir+0x9/0x20
[ 93.718274][ T5321] filename_rmdir+0x292/0x520
[ 93.720337][ T5321] ? __pfx_filename_rmdir+0x10/0x10
[ 93.722686][ T5321] ? do_getname+0x151/0x250
[ 93.724544][ T5321] __se_sys_rmdir+0x2e/0x140
[ 93.726409][ T5321] do_syscall_64+0x166/0x520
[ 93.728383][ T5321] ? trace_irq_disable+0x3b/0x140
[ 93.730299][ T5321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.732883][ T5321] ? clear_bhb_loop+0x70/0xc0
[ 93.734812][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.737249][ T5321] RIP: 0033:0x7f4a6359e559
[ 93.739074][ T5321] 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
[ 93.748939][ T5321] RSP: 002b:00007f4a6438bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
[ 93.752637][ T5321] RAX: ffffffffffffffda RBX: 00007f4a63825fa0 RCX: 00007f4a6359e559
[ 93.756078][ T5321] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000004c0
[ 93.759470][ T5321] RBP: 00007f4a636358b0 R08: 0000000000000000 R09: 0000000000000000
[ 93.763035][ T5321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 93.767043][ T5321] R13: 00007f4a63826038 R14: 00007f4a63825fa0 R15: 00007ffdd3bd4538
[ 93.770498][ T5321]
[ 93.772266][ T5321] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 93.775385][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 93.779192][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 93.787921][ T5321] Call Trace:
[ 93.792298][ T5321]
[ 93.793610][ T5321] vpanic+0x56d/0xa60
[ 93.795231][ T5321] ? __pfx__printk+0x10/0x10
[ 93.797072][ T5321] ? __pfx_vpanic+0x10/0x10
[ 93.798983][ T5321] ? is_bpf_text_address+0x292/0x2b0
[ 93.801278][ T5321] ? is_bpf_text_address+0x26/0x2b0
[ 93.803520][ T5321] panic+0xc5/0xd0
[ 93.805223][ T5321] ? __pfx_panic+0x10/0x10
[ 93.807203][ T5321] __warn+0x315/0x4c0
[ 93.808941][ T5321] ? dlm_lowcomms_close+0x12d/0x440
[ 93.811109][ T5321] ? dlm_lowcomms_close+0x12d/0x440
[ 93.813229][ T5321] __report_bug+0x276/0x570
[ 93.815297][ T5321] ? check_path+0x21/0x40
[ 93.817144][ T5321] ? dlm_lowcomms_close+0x12d/0x440
[ 93.819642][ T5321] ? __pfx___report_bug+0x10/0x10
[ 93.821838][ T5321] ? lockdep_unlock+0x5c/0xd0
[ 93.823902][ T5321] ? __lock_acquire+0x1511/0x2de0
[ 93.826149][ T5321] ? dlm_lowcomms_close+0x12d/0x440
[ 93.828429][ T5321] report_bug+0x16b/0x220
[ 93.830364][ T5321] ? dlm_lowcomms_close+0x12d/0x440
[ 93.832682][ T5321] ? dlm_lowcomms_close+0x12f/0x440
[ 93.834996][ T5321] handle_bug+0x9c/0x200
[ 93.836899][ T5321] exc_invalid_op+0x1a/0x50
[ 93.838873][ T5321] asm_exc_invalid_op+0x1a/0x20
[ 93.844704][ T5321] RIP: 0010:dlm_lowcomms_close+0x12d/0x440
[ 93.847351][ T5321] Code: a9 a2 9f 00 eb a6 44 89 e1 80 e1 07 80 c1 03 38 c1 7c ac 4c 89 e7 e8 92 21 12 01 eb a2 e8 8b a2 9f 00 eb 05 e8 84 a2 9f 00 90 <0f> 0b 90 44 89 f7 e8 28 b3 5b 01 b8 fe ff ff ff 48 83 c4 20 5b 41
[ 93.855614][ T5321] RSP: 0018:ffffc9000e517c40 EFLAGS: 00010283
[ 93.858079][ T5321] RAX: ffffffff81287f05 RBX: 0000000000000001 RCX: 0000000000100000
[ 93.861710][ T5321] RDX: ffffc9000eeba000 RSI: 000000000000080c RDI: 000000000000080d
[ 93.865330][ T5321] RBP: dffffc0000000000 R08: 0000000000000004 R09: ffffffff97bd51c8
[ 93.868751][ T5321] R10: 00000000e7fab97c R11: 00000000d89b56f7 R12: 0000000000000000
[ 93.872215][ T5321] R13: ffffffff81287e38 R14: 0000000000000000 R15: 0000000000000000
[ 93.875770][ T5321] ? dlm_lowcomms_close+0x58/0x440
[ 93.878235][ T5321] ? dlm_lowcomms_close+0x125/0x440
[ 93.880511][ T5321] ? dlm_midcomms_close+0x3a9/0x4c0
[ 93.882752][ T5321] ? dlm_midcomms_close+0x4b/0x4c0
[ 93.885002][ T5321] drop_comm+0x61/0x190
[ 93.886953][ T5321] ? configfs_rmdir+0x850/0x950
[ 93.889036][ T5321] ? __pfx_drop_comm+0x10/0x10
[ 93.891069][ T5321] configfs_rmdir+0x85f/0x950
[ 93.893069][ T5321] vfs_rmdir+0x3e6/0x6a0
[ 93.894893][ T5321] ? bpf_lsm_path_rmdir+0x9/0x20
[ 93.896902][ T5321] filename_rmdir+0x292/0x520
[ 93.898895][ T5321] ? __pfx_filename_rmdir+0x10/0x10
[ 93.901180][ T5321] ? do_getname+0x151/0x250
[ 93.903100][ T5321] __se_sys_rmdir+0x2e/0x140
[ 93.905202][ T5321] do_syscall_64+0x166/0x520
[ 93.907309][ T5321] ? trace_irq_disable+0x3b/0x140
[ 93.909456][ T5321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.912064][ T5321] ? clear_bhb_loop+0x70/0xc0
[ 93.914163][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 93.916614][ T5321] RIP: 0033:0x7f4a6359e559
[ 93.918617][ T5321] 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
[ 93.926630][ T5321] RSP: 002b:00007f4a6438bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
[ 93.930207][ T5321] RAX: ffffffffffffffda RBX: 00007f4a63825fa0 RCX: 00007f4a6359e559
[ 93.933641][ T5321] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000004c0
[ 93.936960][ T5321] RBP: 00007f4a636358b0 R08: 0000000000000000 R09: 0000000000000000
[ 93.940429][ T5321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 93.943858][ T5321] R13: 00007f4a63826038 R14: 00007f4a63825fa0 R15: 00007ffdd3bd4538
[ 93.947420][ T5321]
[ 93.949718][ T5321] Kernel Offset: disabled
[ 93.951776][ T5321] Rebooting in 86400 seconds..