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-kasan-gce-2,10.128.0.50' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 54.290252] TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. executing program executing program executing program executing program executing program executing program executing program executing program [ 54.450413] ------------[ cut here ]------------ [ 54.455303] kernel BUG at net/key/af_key.c:2068! [ 54.460086] invalid opcode: 0000 [#1] SMP KASAN [ 54.464724] Dumping ftrace buffer: [ 54.468239] (ftrace buffer empty) [ 54.471924] Modules linked in: [ 54.475085] CPU: 1 PID: 3371 Comm: syzkaller633326 Not tainted 4.13.0-rc6+ #54 [ 54.482412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.491738] task: ffff8801ca882600 task.stack: ffff8801ca4d8000 [ 54.497770] RIP: 0010:pfkey_xfrm_policy2msg+0x209c/0x22b0 [ 54.503270] RSP: 0018:ffff8801ca4df4b0 EFLAGS: 00010297 [ 54.508602] RAX: ffff8801ca882600 RBX: ffff8801d01458b4 RCX: 0000000000000000 [ 54.515839] RDX: 0000000000000000 RSI: 000000000000204e RDI: ffff8801d0145764 [ 54.523075] RBP: ffff8801ca4df588 R08: 0000000000000001 R09: ffff8801ce368900 [ 54.530328] R10: 000000000000001b R11: ffffed0039c6d13a R12: ffff8801d0145780 [ 54.537564] R13: ffff8801d0145680 R14: 0000000000000008 R15: 0000000000000001 [ 54.544804] FS: 00007feacd215700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 54.552997] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.558844] CR2: 0000000020002ff0 CR3: 00000001cf9cd000 CR4: 00000000001406e0 [ 54.566082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.573323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.580559] Call Trace: [ 54.583142] ? pfkey_sockaddr_fill+0x340/0x340 [ 54.587691] ? check_noncircular+0x20/0x20 [ 54.591892] ? pfkey_xfrm_policy2msg_size+0x1d3/0x230 [ 54.597049] dump_sp+0x14f/0x510 [ 54.600394] ? pfkey_flush+0x3c0/0x3c0 [ 54.604246] ? xfrm_policy_walk+0x192/0xa30 [ 54.608536] xfrm_policy_walk+0x2f1/0xa30 [ 54.612652] ? pfkey_flush+0x3c0/0x3c0 [ 54.616506] ? xfrm_audit_policy_add+0x1f0/0x1f0 [ 54.621232] ? __kfree_skb+0x20/0x20 [ 54.624917] ? lock_release+0xa40/0xa40 [ 54.628858] ? __lock_is_held+0xb6/0x140 [ 54.632890] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 54.637700] ? wait_for_completion+0x730/0x730 [ 54.642249] ? pfkey_acquire+0x220/0x220 [ 54.646277] ? pfkey_broadcast_one+0x6f0/0x6f0 [ 54.650826] pfkey_dump_sp+0x42/0x50 [ 54.654506] pfkey_do_dump+0xaa/0x3f0 [ 54.658284] ? xfrm_policy_walk_init+0x69/0x1c0 [ 54.662926] ? dump_sa+0x5e0/0x5e0 [ 54.666436] pfkey_spddump+0x1a0/0x210 [ 54.670293] ? pfkey_recvmsg+0x710/0x710 [ 54.674331] pfkey_process+0x60b/0x720 [ 54.678189] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 54.683170] ? kasan_check_write+0x14/0x20 [ 54.687384] pfkey_sendmsg+0x4d6/0x9f0 [ 54.691238] ? pfkey_spdget+0xb40/0xb40 [ 54.695194] ? selinux_socket_sendmsg+0x36/0x40 [ 54.699829] ? security_socket_sendmsg+0x89/0xb0 [ 54.704551] ? pfkey_spdget+0xb40/0xb40 [ 54.708492] sock_sendmsg+0xca/0x110 [ 54.712171] sock_write_iter+0x31a/0x5d0 [ 54.716198] ? check_noncircular+0x20/0x20 [ 54.720422] ? sock_sendmsg+0x110/0x110 [ 54.724379] ? iov_iter_init+0xaf/0x1d0 [ 54.728324] __vfs_write+0x684/0x970 [ 54.732004] ? default_llseek+0x290/0x290 [ 54.736118] ? selinux_capset+0x100/0x100 [ 54.740239] ? selinux_file_permission+0x82/0x460 [ 54.745052] ? rw_verify_area+0xe5/0x2b0 [ 54.749079] ? __fdget_raw+0x20/0x20 [ 54.752761] vfs_write+0x189/0x510 [ 54.756279] SyS_write+0xef/0x220 [ 54.759699] ? SyS_read+0x220/0x220 [ 54.763305] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 54.768297] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.773023] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 54.777745] RIP: 0033:0x44a979 [ 54.780903] RSP: 002b:00007feacd214d98 EFLAGS: 00000297 ORIG_RAX: 0000000000000001 [ 54.788578] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a979 [ 54.795814] RDX: 0000000000000010 RSI: 0000000020002ff0 RDI: 0000000000000008 [ 54.803050] RBP: 0000000000000086 R08: 00007feacd215700 R09: 0000000000000000 [ 54.810286] R10: 00007feacd215700 R11: 0000000000000297 R12: 0000000000000000 [ 54.817522] R13: 00007fff17939d7f R14: 00007feacd2159c0 R15: 0000000000000000 [ 54.824767] Code: ff ff 48 89 95 58 ff ff ff 89 8d 70 ff ff ff e8 fb 52 61 fd 48 8b 95 58 ff ff ff 8b 8d 70 ff ff ff e9 04 e3 ff ff e8 34 8f 2e fd <0f> 0b be 02 00 00 00 4c 89 f7 e8 15 54 61 fd e9 6f e3 ff ff 48 [ 54.843834] RIP: pfkey_xfrm_policy2msg+0x209c/0x22b0 RSP: ffff8801ca4df4b0 [ 54.850851] ---[ end trace 6bc1ea9989c5fce5 ]--- [ 54.855584] Kernel panic - not syncing: Fatal exception in interrupt [ 54.862064] Dumping ftrace buffer: [ 54.865573] (ftrace buffer empty) [ 54.869250] Kernel Offset: disabled [ 54.872844] Rebooting in 86400 seconds..