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 'ci-upstream-next-kasan-gce-4,10.128.0.20' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program executing program syzkaller login: [ 42.057733] TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. [ 42.121684] ------------[ cut here ]------------ [ 42.126582] kernel BUG at net/key/af_key.c:2068! [ 42.131386] invalid opcode: 0000 [#1] SMP KASAN [ 42.136027] Dumping ftrace buffer: [ 42.139537] (ftrace buffer empty) [ 42.143220] Modules linked in: [ 42.146391] CPU: 0 PID: 3090 Comm: syzkaller661566 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 42.154843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.164164] task: ffff8801cb5a6140 task.stack: ffff8801cb458000 [ 42.170197] RIP: 0010:pfkey_xfrm_policy2msg+0x1cc6/0x2330 [ 42.175699] RSP: 0018:ffff8801cb45f4b0 EFLAGS: 00010297 [ 42.181030] RAX: ffff8801cb5a6140 RBX: ffff8801cba50fcc RCX: 0000000000000000 [ 42.188267] RDX: 0000000000000000 RSI: 000000000000204e RDI: ffff8801cba50e6c [ 42.195507] RBP: ffff8801cb45f588 R08: 0000000000000001 R09: ffff8801cc1ae480 [ 42.202743] R10: 000000000000001b R11: ffffed0039835caa R12: ffff8801cba50e88 [ 42.209980] R13: 0000000000000001 R14: 0000000000000008 R15: ffff8801cba50d80 [ 42.217233] FS: 00007f0430560700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 42.225430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.231279] CR2: 0000000020002ff0 CR3: 00000001c05a6000 CR4: 00000000001406f0 [ 42.238952] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.246188] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.253426] Call Trace: [ 42.255992] ? pfkey_sockaddr_fill+0x340/0x340 [ 42.260540] ? pfkey_xfrm_policy2msg_size+0x1d3/0x230 [ 42.265709] dump_sp+0x14f/0x510 [ 42.269043] ? find_held_lock+0x39/0x1d0 [ 42.273069] ? pfkey_flush+0x3c0/0x3c0 [ 42.276924] ? xfrm_policy_walk+0x192/0xa30 [ 42.281287] xfrm_policy_walk+0x2f1/0xa30 [ 42.285411] ? pfkey_flush+0x3c0/0x3c0 [ 42.289268] ? xfrm_audit_policy_delete+0x1f0/0x1f0 [ 42.294251] ? pfkey_broadcast+0x230/0x780 [ 42.298454] ? __kfree_skb+0x20/0x20 [ 42.302135] ? lock_release+0xd70/0xd70 [ 42.306076] ? __lock_is_held+0xbc/0x140 [ 42.310107] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 42.314917] ? wait_for_completion+0x770/0x770 [ 42.319477] ? pfkey_acquire+0x220/0x220 [ 42.323502] ? pfkey_broadcast_one+0x6f0/0x6f0 [ 42.328047] pfkey_dump_sp+0x42/0x50 [ 42.331737] pfkey_do_dump+0xaa/0x3f0 [ 42.335512] ? xfrm_policy_walk_init+0x69/0x1c0 [ 42.340146] ? dump_sa+0x5e0/0x5e0 [ 42.343743] pfkey_spddump+0x1a0/0x210 [ 42.347594] ? pfkey_recvmsg+0x710/0x710 [ 42.351621] pfkey_process+0x60b/0x720 [ 42.355486] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 42.360468] ? kasan_check_write+0x14/0x20 [ 42.364681] pfkey_sendmsg+0x4d6/0x9f0 [ 42.368539] ? pfkey_spdget+0xb00/0xb00 [ 42.372489] ? selinux_socket_sendmsg+0x36/0x40 [ 42.377131] ? security_socket_sendmsg+0x89/0xb0 [ 42.381852] ? pfkey_spdget+0xb00/0xb00 [ 42.385797] sock_sendmsg+0xca/0x110 [ 42.389477] sock_write_iter+0x320/0x5e0 [ 42.393514] ? sock_sendmsg+0x110/0x110 [ 42.397463] ? iov_iter_init+0xaf/0x1d0 [ 42.401409] __vfs_write+0x68a/0x970 [ 42.405091] ? default_llseek+0x2a0/0x2a0 [ 42.409203] ? selinux_capset+0x100/0x100 [ 42.413318] ? _cond_resched+0x14/0x30 [ 42.417176] ? selinux_file_permission+0x82/0x460 [ 42.421990] ? rw_verify_area+0xe5/0x2b0 [ 42.426017] ? __fdget_raw+0x20/0x20 [ 42.429697] vfs_write+0x18f/0x510 [ 42.433206] SyS_write+0xef/0x220 [ 42.436627] ? SyS_read+0x220/0x220 [ 42.440229] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.445219] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.449943] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.454664] RIP: 0033:0x44aca9 [ 42.457820] RSP: 002b:00007f043055fd98 EFLAGS: 00000297 ORIG_RAX: 0000000000000001 [ 42.465492] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044aca9 [ 42.472729] RDX: 0000000000000010 RSI: 0000000020002ff0 RDI: 0000000000000008 [ 42.479965] RBP: 0000000000000086 R08: 00007f0430560700 R09: 0000000000000000 [ 42.487202] R10: 00007f0430560700 R11: 0000000000000297 R12: 0000000000000000 [ 42.494448] R13: 00007ffed12d8f8f R14: 00007f04305609c0 R15: 0000000000000000 [ 42.501693] Code: ff ff ff 10 00 00 00 e9 2a e4 ff ff e8 b4 b3 2a fd 48 8b 85 70 ff ff ff be 01 00 00 00 66 89 70 04 e9 73 f4 ff ff e8 9a b3 2a fd <0f> 0b e8 d3 54 5f fd e9 13 ff ff ff 48 89 df e8 66 55 5f fd e9 [ 42.520766] RIP: pfkey_xfrm_policy2msg+0x1cc6/0x2330 RSP: ffff8801cb45f4b0 [ 42.527793] ---[ end trace e2224063f2c84327 ]--- [ 42.532536] Kernel panic - not syncing: Fatal exception in interrupt [ 42.539027] Dumping ftrace buffer: [ 42.542544] (ftrace buffer empty) [ 42.546226] Kernel Offset: disabled [ 42.549834] Rebooting in 86400 seconds..