[info] Using makefile-style concurrent boot in runlevel 2. [ 26.293783] audit: type=1800 audit(1542302830.796:21): pid=5807 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 26.319427] audit: type=1800 audit(1542302830.796:22): pid=5807 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] 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 '10.128.0.46' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 38.339187] netlink: 'syz-executor263': attribute type 3 has an invalid length. [ 38.346818] netlink: 'syz-executor263': attribute type 2 has an invalid length. [ 38.354688] WARNING: CPU: 0 PID: 5963 at net/netfilter/nfnetlink_cttimeout.c:478 cttimeout_default_get+0x1df/0xb30 [ 38.365228] Kernel panic - not syncing: panic_on_warn set ... [ 38.371161] CPU: 0 PID: 5963 Comm: syz-executor263 Not tainted 4.20.0-rc2+ #113 [ 38.378589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.387925] Call Trace: [ 38.390508] dump_stack+0x244/0x39d [ 38.394122] ? dump_stack_print_info.cold.1+0x20/0x20 [ 38.399300] panic+0x2ad/0x55c [ 38.402530] ? add_taint.cold.5+0x16/0x16 [ 38.406670] ? __warn.cold.8+0x5/0x45 [ 38.410452] ? __warn+0xe8/0x1d0 [ 38.413810] ? cttimeout_default_get+0x1df/0xb30 [ 38.418552] __warn.cold.8+0x20/0x45 [ 38.422249] ? rcu_softirq_qs+0x20/0x20 [ 38.426211] ? cttimeout_default_get+0x1df/0xb30 [ 38.430961] report_bug+0x254/0x2d0 [ 38.434575] do_error_trap+0x11b/0x200 [ 38.438461] do_invalid_op+0x36/0x40 [ 38.442160] ? cttimeout_default_get+0x1df/0xb30 [ 38.446897] invalid_op+0x14/0x20 [ 38.450334] RIP: 0010:cttimeout_default_get+0x1df/0xb30 [ 38.455692] Code: 00 0f 87 8d 00 00 00 41 80 ff 06 0f 84 94 07 00 00 41 80 ff 11 0f 84 6c 07 00 00 41 80 ff 01 0f 84 44 07 00 00 e8 91 f1 20 fb <0f> 0b 41 bd a1 ff ff ff eb 06 41 bd a1 ff ff ff e8 7c f1 20 fb 48 [ 38.474661] RSP: 0018:ffff8881d94c72b0 EFLAGS: 00010293 [ 38.480006] RAX: ffff8881c0c8e6c0 RBX: ffffffff88bf58e0 RCX: ffffffff865e961c [ 38.487259] RDX: 0000000000000000 RSI: ffffffff865e964f RDI: 0000000000000001 [ 38.494525] RBP: ffff8881d94c73c0 R08: ffff8881c0c8e6c0 R09: ffffed103b5c5b67 [ 38.501780] R10: 0000000000000002 R11: ffff8881dae2db3b R12: 0000000000000088 [ 38.509037] R13: ffff8881cc2a0280 R14: 0000000000000017 R15: 0000000000000088 [ 38.516321] ? cttimeout_default_get+0x1ac/0xb30 [ 38.521064] ? cttimeout_default_get+0x1df/0xb30 [ 38.525824] ? lock_downgrade+0x900/0x900 [ 38.529961] ? check_preemption_disabled+0x48/0x280 [ 38.534963] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 38.539704] ? __lock_is_held+0xb5/0x140 [ 38.543751] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 38.548491] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 38.552804] ? nfnetlink_bind+0x3b0/0x3b0 [ 38.556957] ? __netlink_lookup+0x5b6/0xa90 [ 38.561266] ? find_held_lock+0x36/0x1c0 [ 38.565317] ? netlink_deliver_tap+0x32e/0xf80 [ 38.569881] ? lock_downgrade+0x900/0x900 [ 38.574010] ? check_preemption_disabled+0x48/0x280 [ 38.579014] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 38.583942] ? kasan_check_read+0x11/0x20 [ 38.588072] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 38.593334] ? rcu_softirq_qs+0x20/0x20 [ 38.597297] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.602823] netlink_rcv_skb+0x172/0x440 [ 38.606868] ? nfnetlink_bind+0x3b0/0x3b0 [ 38.610997] ? netlink_ack+0xb80/0xb80 [ 38.614873] ? __netlink_ns_capable+0x100/0x130 [ 38.619532] nfnetlink_rcv+0x1c0/0x4d0 [ 38.623406] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 38.628150] ? kasan_check_write+0x14/0x20 [ 38.632370] netlink_unicast+0x5a5/0x760 [ 38.636416] ? netlink_attachskb+0x9a0/0x9a0 [ 38.640810] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.646333] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 38.651338] netlink_sendmsg+0xa18/0xfc0 [ 38.655394] ? netlink_unicast+0x760/0x760 [ 38.659616] ? smack_socket_sendmsg+0xb0/0x190 [ 38.664194] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.669716] ? security_socket_sendmsg+0x94/0xc0 [ 38.674453] ? netlink_unicast+0x760/0x760 [ 38.678673] sock_sendmsg+0xd5/0x120 [ 38.682372] ___sys_sendmsg+0x7fd/0x930 [ 38.686341] ? find_held_lock+0x36/0x1c0 [ 38.690387] ? copy_msghdr_from_user+0x580/0x580 [ 38.695124] ? zap_class+0x640/0x640 [ 38.698842] ? zap_class+0x640/0x640 [ 38.702538] ? zap_class+0x640/0x640 [ 38.706236] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.711757] ? __fget_light+0x2e9/0x430 [ 38.715714] ? fget_raw+0x20/0x20 [ 38.719158] ? __do_page_fault+0x620/0xe60 [ 38.723380] ? lock_downgrade+0x900/0x900 [ 38.727515] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 38.732429] ? kasan_check_read+0x11/0x20 [ 38.736565] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.742090] ? sockfd_lookup_light+0xc5/0x160 [ 38.746572] __sys_sendmsg+0x11d/0x280 [ 38.750443] ? __ia32_sys_shutdown+0x80/0x80 [ 38.754839] ? up_read_non_owner+0x100/0x100 [ 38.759245] ? do_syscall_64+0x9a/0x820 [ 38.763204] ? do_syscall_64+0x9a/0x820 [ 38.767164] ? trace_hardirqs_off_caller+0x310/0x310 [ 38.772257] __x64_sys_sendmsg+0x78/0xb0 [ 38.776304] do_syscall_64+0x1b9/0x820 [ 38.780175] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 38.785525] ? syscall_return_slowpath+0x5e0/0x5e0 [ 38.790445] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.795281] ? trace_hardirqs_on_caller+0x310/0x310 [ 38.800283] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 38.805284] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.810804] ? prepare_exit_to_usermode+0x291/0x3b0 [ 38.815809] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.820638] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.825812] RIP: 0033:0x4400d9 [ 38.828998] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 38.847883] RSP: 002b:00007ffef451c688 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 38.855586] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 38.862851] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 38.870101] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 38.877354] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 38.884609] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 38.893008] Kernel Offset: disabled [ 38.896684] Rebooting in 86400 seconds..