[info] Using makefile-style concurrent boot in runlevel 2. [ 24.779798] audit: type=1800 audit(1542314805.102:21): pid=5764 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.806122] audit: type=1800 audit(1542314805.112:22): pid=5764 uid=0 auid=4294967295 ses=4294967295 subj==unconfined 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 '10.128.0.52' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 64.286049] netlink: 'syz-executor697': attribute type 3 has an invalid length. [ 64.293725] netlink: 'syz-executor697': attribute type 2 has an invalid length. [ 64.301537] WARNING: CPU: 0 PID: 5920 at net/netfilter/nfnetlink_cttimeout.c:478 cttimeout_default_get+0x1df/0xb30 [ 64.312108] Kernel panic - not syncing: panic_on_warn set ... [ 64.318161] CPU: 0 PID: 5920 Comm: syz-executor697 Not tainted 4.20.0-rc2+ #297 [ 64.325718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.335287] Call Trace: [ 64.337884] dump_stack+0x244/0x39d [ 64.341507] ? dump_stack_print_info.cold.1+0x20/0x20 [ 64.346686] panic+0x2ad/0x55c [ 64.349862] ? add_taint.cold.5+0x16/0x16 [ 64.353988] ? __warn.cold.8+0x5/0x45 [ 64.357763] ? __warn+0xe8/0x1d0 [ 64.361115] ? cttimeout_default_get+0x1df/0xb30 [ 64.365853] __warn.cold.8+0x20/0x45 [ 64.369545] ? rcu_softirq_qs+0x20/0x20 [ 64.373501] ? cttimeout_default_get+0x1df/0xb30 [ 64.378443] report_bug+0x254/0x2d0 [ 64.382065] do_error_trap+0x11b/0x200 [ 64.385937] do_invalid_op+0x36/0x40 [ 64.389650] ? cttimeout_default_get+0x1df/0xb30 [ 64.394427] invalid_op+0x14/0x20 [ 64.397863] RIP: 0010:cttimeout_default_get+0x1df/0xb30 [ 64.403206] 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 f1 55 20 fb <0f> 0b 41 bd a1 ff ff ff eb 06 41 bd a1 ff ff ff e8 dc 55 20 fb 48 [ 64.422243] RSP: 0018:ffff8881b430f2b0 EFLAGS: 00010293 [ 64.427589] RAX: ffff8881c28b0180 RBX: ffffffff88bf5f60 RCX: ffffffff865f31bc [ 64.434853] RDX: 0000000000000000 RSI: ffffffff865f31ef RDI: 0000000000000001 [ 64.442104] RBP: ffff8881b430f3c0 R08: ffff8881c28b0180 R09: ffffed103b5c5b67 [ 64.449349] R10: 0000000000000002 R11: ffff8881dae2db3b R12: 0000000000000088 [ 64.456641] R13: ffff8881b8bcfcc0 R14: 0000000000000000 R15: 0000000000000088 [ 64.464134] ? cttimeout_default_get+0x1ac/0xb30 [ 64.468872] ? cttimeout_default_get+0x1df/0xb30 [ 64.473622] ? lock_downgrade+0x900/0x900 [ 64.477765] ? check_preemption_disabled+0x48/0x280 [ 64.482767] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 64.487505] ? __lock_is_held+0xb5/0x140 [ 64.491556] ? cttimeout_new_timeout+0x8c0/0x8c0 [ 64.496296] nfnetlink_rcv_msg+0xdd3/0x10c0 [ 64.500604] ? nfnetlink_bind+0x3b0/0x3b0 [ 64.504741] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.510261] ? refcount_sub_and_test_checked+0x203/0x310 [ 64.515698] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 64.521128] ? netlink_deliver_tap+0x32e/0xf80 [ 64.525734] ? lock_downgrade+0x900/0x900 [ 64.529864] ? check_preemption_disabled+0x48/0x280 [ 64.534865] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 64.540378] ? apparmor_capable+0x355/0x6c0 [ 64.544676] ? rcu_softirq_qs+0x20/0x20 [ 64.548652] ? apparmor_cred_transfer+0x590/0x590 [ 64.553484] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.559150] netlink_rcv_skb+0x172/0x440 [ 64.563202] ? nfnetlink_bind+0x3b0/0x3b0 [ 64.567563] ? netlink_ack+0xb80/0xb80 [ 64.571436] ? __netlink_ns_capable+0x100/0x130 [ 64.576091] nfnetlink_rcv+0x1c0/0x4d0 [ 64.580109] ? nfnetlink_rcv_batch+0x19b0/0x19b0 [ 64.584853] ? kasan_check_write+0x14/0x20 [ 64.589067] netlink_unicast+0x5a5/0x760 [ 64.593109] ? netlink_attachskb+0x9a0/0x9a0 [ 64.597518] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.603039] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 64.608036] netlink_sendmsg+0xa18/0xfc0 [ 64.612083] ? netlink_unicast+0x760/0x760 [ 64.616299] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 64.621211] ? apparmor_socket_sendmsg+0x29/0x30 [ 64.625948] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.631482] ? security_socket_sendmsg+0x94/0xc0 [ 64.636232] ? netlink_unicast+0x760/0x760 [ 64.640603] sock_sendmsg+0xd5/0x120 [ 64.644317] ___sys_sendmsg+0x7fd/0x930 [ 64.648354] ? find_held_lock+0x36/0x1c0 [ 64.652407] ? copy_msghdr_from_user+0x580/0x580 [ 64.657143] ? zap_class+0x640/0x640 [ 64.660840] ? zap_class+0x640/0x640 [ 64.664538] ? zap_class+0x640/0x640 [ 64.668233] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.673748] ? __fget_light+0x2e9/0x430 [ 64.677702] ? fget_raw+0x20/0x20 [ 64.681143] ? __do_page_fault+0x620/0xe60 [ 64.685365] ? lock_downgrade+0x900/0x900 [ 64.689497] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 64.694414] ? kasan_check_read+0x11/0x20 [ 64.698551] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 64.704074] ? sockfd_lookup_light+0xc5/0x160 [ 64.708774] __sys_sendmsg+0x11d/0x280 [ 64.712658] ? __ia32_sys_shutdown+0x80/0x80 [ 64.717053] ? up_read_non_owner+0x100/0x100 [ 64.721449] ? do_syscall_64+0x9a/0x820 [ 64.725411] ? do_syscall_64+0x9a/0x820 [ 64.729372] ? trace_hardirqs_off_caller+0x310/0x310 [ 64.734464] __x64_sys_sendmsg+0x78/0xb0 [ 64.738510] do_syscall_64+0x1b9/0x820 [ 64.742384] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 64.747905] ? syscall_return_slowpath+0x5e0/0x5e0 [ 64.752825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.757651] ? trace_hardirqs_on_caller+0x310/0x310 [ 64.762651] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 64.767648] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.773167] ? prepare_exit_to_usermode+0x291/0x3b0 [ 64.778173] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.783169] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.788351] RIP: 0033:0x4400d9 [ 64.791547] 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 [ 64.810435] RSP: 002b:00007fffca48a258 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 64.818123] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400d9 [ 64.825369] RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003 [ 64.832615] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 64.839954] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401960 [ 64.847199] R13: 00000000004019f0 R14: 0000000000000000 R15: 0000000000000000 [ 64.855778] Kernel Offset: disabled [ 64.859460] Rebooting in 86400 seconds..