INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.986993] FAULT_INJECTION: forcing a failure. [ 39.986993] name failslab, interval 1, probability 0, space 0, times 1 [ 39.998269] CPU: 0 PID: 4496 Comm: syz-executor234 Not tainted 4.16.0+ #87 [ 40.005273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.014618] Call Trace: [ 40.017206] dump_stack+0x185/0x1d0 [ 40.020832] should_fail+0x87b/0xab0 [ 40.024546] should_failslab+0x279/0x2a0 [ 40.028604] __kmalloc+0xc2/0x350 [ 40.032064] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.036898] ? tipc_nameseq_create+0x70/0x590 [ 40.041405] tipc_nameseq_create+0x70/0x590 [ 40.045730] tipc_nametbl_subscribe+0x510/0x1330 [ 40.050488] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 40.055864] ? trace_kmalloc+0xb6/0x2b0 [ 40.059854] tipc_subscrb_rcv_cb+0xb6b/0xe80 [ 40.064272] ? tipc_topsrv_start+0x650/0x650 [ 40.068693] tipc_topsrv_kern_subscr+0x4ff/0x610 [ 40.073478] tipc_group_create+0x63e/0x9c0 [ 40.077744] tipc_setsockopt+0x120c/0x1e50 [ 40.081977] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 40.087355] ? __fget_light+0x1f5/0x710 [ 40.091327] ? security_socket_setsockopt+0x5b/0x200 [ 40.096447] ? tipc_shutdown+0x5c0/0x5c0 [ 40.100521] SYSC_setsockopt+0x4b8/0x570 [ 40.104585] SyS_setsockopt+0x76/0xa0 [ 40.108378] do_syscall_64+0x309/0x430 [ 40.112258] ? SYSC_recv+0xe0/0xe0 [ 40.115804] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 40.120981] RIP: 0033:0x440439 [ 40.124161] RSP: 002b:00007ffc4855a9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 40.131861] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440439 [ 40.139120] RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000003 [ 40.146378] RBP: 00000000006cb018 R08: 000000000000001c R09: 00007ffc48550036 [ 40.153635] R10: 0000000020b89fe4 R11: 0000000000000246 R12: 0000000000000004 [ 40.160892] R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 [ 40.168258] Name sequence creation failed, no memory [ 40.173412] Failed to create subscription for {65537,0,4294967295} [ 40.181285] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 40.189297] IP: __list_del_entry_valid+0xd1/0x440 [ 40.194122] PGD 0 P4D 0 [ 40.196790] Oops: 0000 [#1] SMP PTI [ 40.200400] Dumping ftrace buffer: [ 40.203919] (ftrace buffer empty) [ 40.207611] Modules linked in: [ 40.210799] CPU: 0 PID: 4496 Comm: syz-executor234 Not tainted 4.16.0+ #87 [ 40.217795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.227156] RIP: 0010:__list_del_entry_valid+0xd1/0x440 [ 40.232502] RSP: 0018:ffff8801a080f678 EFLAGS: 00010286 [ 40.237854] RAX: 0000000000000001 RBX: 000000009f000094 RCX: 0000000000000000 [ 40.245114] RDX: 0000000000000000 RSI: 000000009f000094 RDI: ffffffff83ed21ca [ 40.252372] RBP: ffff8801a080f6d0 R08: 0000000000000000 R09: 0000000000000000 [ 40.259639] R10: 0000000000000001 R11: ffff8801a0800000 R12: ffffffffffffffff [ 40.266908] R13: 0000000000000010 R14: 000000009f000094 R15: 0000000000000000 [ 40.274170] FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 40.282388] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.288256] CR2: 0000000000000000 CR3: 000000000aa30000 CR4: 00000000001406f0 [ 40.295516] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.302772] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.310030] Call Trace: [ 40.312620] tipc_nametbl_unsubscribe+0x4a1/0xa90 [ 40.317489] ? tipc_subscrb_release_cb+0x61/0x100 [ 40.322327] tipc_subscrb_subscrp_delete+0x399/0x990 [ 40.327436] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.332123] tipc_subscrb_release_cb+0x61/0x100 [ 40.336807] tipc_topsrv_kern_unsubscr+0x54b/0x630 [ 40.341739] ? tipc_subscrb_connect_cb+0x270/0x270 [ 40.346660] tipc_group_delete+0x4c8/0x520 [ 40.350931] ? tipc_group_self+0x16a/0x260 [ 40.355186] tipc_release+0x215/0x1730 [ 40.359106] ? fsnotify+0x493/0x18f0 [ 40.362836] ? __fsnotify_parent+0x132/0x560 [ 40.367242] ? tipc_sock_destruct+0x3b0/0x3b0 [ 40.371757] sock_close+0xe0/0x300 [ 40.375340] __fput+0x49e/0xa10 [ 40.378654] ____fput+0x37/0x40 [ 40.381952] ? fput+0x2e0/0x2e0 [ 40.385227] task_work_run+0x243/0x2c0 [ 40.389120] do_exit+0x10e1/0x38d0 [ 40.392696] do_group_exit+0x1a0/0x360 [ 40.396586] SYSC_exit_group+0x21/0x30 [ 40.400463] SyS_exit_group+0x25/0x30 [ 40.404254] do_syscall_64+0x309/0x430 [ 40.408143] ? do_group_exit+0x360/0x360 [ 40.412198] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 40.417374] RIP: 0033:0x43f0f8 [ 40.420556] RSP: 002b:00007ffc4855aa08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 40.428256] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043f0f8 [ 40.435514] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 40.442773] RBP: 00000000004bf1e8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 40.450035] R10: 0000000020b89fe4 R11: 0000000000000246 R12: 0000000000000001 [ 40.457294] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 40.464551] Code: 15 4c 89 f8 4c 31 f0 4c 89 e1 48 f7 d1 48 21 c1 0f 84 76 01 00 00 4d 39 f7 0f 84 7e 01 00 00 41 89 de 4d 85 e4 0f 85 01 02 00 00 <4d> 8b 27 4c 89 ff e8 e4 79 cb fd 48 8b 18 44 8b 3a 48 89 d8 48 [ 40.483869] RIP: __list_del_entry_valid+0xd1/0x440 RSP: ffff8801a080f678 [ 40.490698] CR2: 0000000000000000 [ 40.494146] ---[ end trace c04b5bddd3a6e1df ]--- [ 40.498897] Kernel panic - not syncing: Fatal exception in interrupt [ 40.505927] Dumping ftrace buffer: [ 40.509458] (ftrace buffer empty) [ 40.513151] Kernel Offset: disabled [ 40.516775] Rebooting in 86400 seconds..