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-386-2,10.128.0.42' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program syzkaller login: [ 21.001729] TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. executing program [ 21.083880] ------------[ cut here ]------------ [ 21.088704] kernel BUG at net/key/af_key.c:2068! [ 21.093481] invalid opcode: 0000 [#1] SMP KASAN [ 21.098125] Dumping ftrace buffer: [ 21.101629] (ftrace buffer empty) [ 21.105308] Modules linked in: [ 21.108471] CPU: 0 PID: 3024 Comm: syzkaller790413 Not tainted 4.14.0-rc2+ #16 [ 21.115795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.125117] task: ffff8801cddc8100 task.stack: ffff8801c0a88000 [ 21.131143] RIP: 0010:pfkey_xfrm_policy2msg+0x209c/0x22b0 [ 21.136641] RSP: 0018:ffff8801c0a8f318 EFLAGS: 00010297 [ 21.141972] RAX: ffff8801cddc8100 RBX: ffff8801cea778cc RCX: 0000000000000000 [ 21.149207] RDX: 0000000000000000 RSI: 000000000000204e RDI: ffff8801cea7776c [ 21.156444] RBP: ffff8801c0a8f3f0 R08: 0000000000000001 R09: ffff8801d0b66dc0 [ 21.163679] R10: 000000000000001b R11: ffffed003a16cdd2 R12: ffff8801cea77788 [ 21.170920] R13: ffff8801cea77680 R14: 0000000000000008 R15: 0000000000000001 [ 21.178157] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000ecf1fb40 [ 21.186347] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 21.192193] CR2: 0000000020002ff0 CR3: 00000001d4b3c000 CR4: 00000000001406f0 [ 21.199432] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.206670] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.213909] Call Trace: [ 21.216469] ? pfkey_sockaddr_fill+0x340/0x340 [ 21.221019] ? __mutex_lock+0x16f/0x19d0 [ 21.225048] ? pfkey_spddump+0x27/0x210 [ 21.228991] ? pfkey_xfrm_policy2msg_size+0x1d3/0x230 [ 21.234154] dump_sp+0x14f/0x510 [ 21.237490] ? find_held_lock+0x39/0x1d0 [ 21.241517] ? pfkey_flush+0x3c0/0x3c0 [ 21.245375] ? xfrm_policy_walk+0x192/0xa30 [ 21.249667] xfrm_policy_walk+0x2f1/0xa30 [ 21.253786] ? pfkey_flush+0x3c0/0x3c0 [ 21.257642] ? xfrm_audit_policy_delete+0x1f0/0x1f0 [ 21.262622] ? pfkey_broadcast+0x230/0x780 [ 21.266826] ? __kfree_skb+0x20/0x20 [ 21.270507] ? lock_release+0xd70/0xd70 [ 21.274449] ? __lock_is_held+0xbc/0x140 [ 21.278481] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 21.283294] ? wait_for_completion+0x7b0/0x7b0 [ 21.287845] ? pfkey_acquire+0x220/0x220 [ 21.291872] ? pfkey_broadcast_one+0x6f0/0x6f0 [ 21.296427] pfkey_dump_sp+0x42/0x50 [ 21.300110] pfkey_do_dump+0xaa/0x3f0 [ 21.303879] ? xfrm_policy_walk_init+0x69/0x1c0 [ 21.308514] ? dump_sa+0x5e0/0x5e0 [ 21.312024] ? iov_iter_advance+0x2a1/0x13f0 [ 21.316401] pfkey_spddump+0x1a0/0x210 [ 21.320253] ? pfkey_recvmsg+0x710/0x710 [ 21.324282] pfkey_process+0x60b/0x720 [ 21.328138] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.333119] ? kasan_check_write+0x14/0x20 [ 21.337338] pfkey_sendmsg+0x4d6/0x9f0 [ 21.341193] ? pfkey_spdget+0xb00/0xb00 [ 21.345139] ? selinux_socket_sendmsg+0x36/0x40 [ 21.349779] ? security_socket_sendmsg+0x89/0xb0 [ 21.354499] ? pfkey_spdget+0xb00/0xb00 [ 21.358440] sock_sendmsg+0xca/0x110 [ 21.362123] sock_write_iter+0x320/0x5e0 [ 21.366150] ? sock_sendmsg+0x110/0x110 [ 21.370099] ? iov_iter_init+0xaf/0x1d0 [ 21.374042] __vfs_write+0x68a/0x970 [ 21.377726] ? kernel_read+0x120/0x120 [ 21.381578] ? selinux_capset+0x100/0x100 [ 21.385698] ? selinux_file_permission+0x82/0x460 [ 21.390512] ? rw_verify_area+0xe5/0x2b0 [ 21.394538] ? __fdget_raw+0x20/0x20 [ 21.398220] vfs_write+0x18f/0x510 [ 21.401731] SyS_write+0xef/0x220 [ 21.405155] ? SyS_read+0x220/0x220 [ 21.408751] ? do_fast_syscall_32+0x158/0xf05 [ 21.413219] ? SyS_read+0x220/0x220 [ 21.416814] do_fast_syscall_32+0x3f2/0xf05 [ 21.421106] ? do_int80_syscall_32+0x940/0x940 [ 21.425658] ? lockdep_sys_exit+0x47/0xf0 [ 21.429775] ? syscall_return_slowpath+0x2b3/0x510 [ 21.434671] ? finish_task_switch+0x1aa/0x740 [ 21.439135] ? lockdep_sys_exit+0x47/0xf0 [ 21.443250] ? retint_user+0x18/0x20 [ 21.446934] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.451752] entry_SYSENTER_compat+0x51/0x60 [ 21.456127] RIP: 0023:0xf7f39c79 [ 21.459456] RSP: 002b:00000000ecf1f1ec EFLAGS: 00000297 ORIG_RAX: 0000000000000004 [ 21.467133] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000020002ff0 [ 21.474367] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 21.481603] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 21.488838] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 21.496074] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 21.503322] Code: ff ff 48 89 95 58 ff ff ff 89 8d 70 ff ff ff e8 ab 90 5f fd 48 8b 95 58 ff ff ff 8b 8d 70 ff ff ff e9 04 e3 ff ff e8 54 d2 2a fd <0f> 0b be 02 00 00 00 4c 89 f7 e8 c5 91 5f fd e9 6f e3 ff ff 48 [ 21.522422] RIP: pfkey_xfrm_policy2msg+0x209c/0x22b0 RSP: ffff8801c0a8f318 [ 21.529438] ---[ end trace 5d48d18d4a6d272b ]--- [ 21.534181] Kernel panic - not syncing: Fatal exception in interrupt [ 21.541058] Dumping ftrace buffer: [ 21.544566] (ftrace buffer empty) [ 21.548240] Kernel Offset: disabled [ 21.551834] Rebooting in 86400 seconds..