INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-android-49-kasan-gce-9,10.128.0.13' (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: [ 41.589131] TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending cookies. Check SNMP counters. executing program [ 41.743082] ------------[ cut here ]------------ [ 41.747850] kernel BUG at net/key/af_key.c:2076! [ 41.752572] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 41.757902] Dumping ftrace buffer: [ 41.761406] (ftrace buffer empty) [ 41.765090] Modules linked in: [ 41.768369] CPU: 0 PID: 3297 Comm: syzkaller116262 Not tainted 4.9.44-gbf7ef8f #34 [ 41.776044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.785377] task: ffff8801c7724800 task.stack: ffff8801c7730000 [ 41.791405] RIP: 0010:[] [] pfkey_xfrm_policy2msg+0x1b6b/0x2100 [ 41.800781] RSP: 0018:ffff8801c7737820 EFLAGS: 00010297 [ 41.806200] RAX: ffff8801c7724800 RBX: ffff8801c7728b64 RCX: 0000000000000000 [ 41.813448] RDX: 0000000000000000 RSI: 000000000000204e RDI: ffff8801c77289fc [ 41.820699] RBP: ffff8801c7737890 R08: 0000000000000001 R09: ffff8801c7728d80 [ 41.827944] R10: 000000000000001b R11: ffffed0038ee51ca R12: ffff8801c7728a18 [ 41.835188] R13: ffff8801c7728900 R14: 0000000000000001 R15: 0000000000000008 [ 41.842441] FS: 00007fcfb9482700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 41.850644] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.856496] CR2: 0000000020002ff0 CR3: 00000001d1c6e000 CR4: 00000000001406f0 [ 41.863735] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.870972] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.878209] Stack: [ 41.880328] ffff8801c7728d80 000000d800000000 ffff8801c77378a8 00000000000000d8 [ 41.888285] ffffffff83555ea3 ffff8801c7728d90 0000000300000000 ffff8801d1c7eb40 [ 41.896246] 00000000000000ff ffff8801cf462200 ffff8801c7728900 ffff8801d1c7eb40 [ 41.904199] Call Trace: [ 41.906761] [] ? pfkey_xfrm_policy2msg_size+0x1d3/0x230 [ 41.913753] [] dump_sp+0xca/0x450 [ 41.918833] [] xfrm_policy_walk+0x1b1/0x4d0 [ 41.924779] [] ? pfkey_flush+0x2e0/0x2e0 [ 41.930466] [] ? pfkey_broadcast_one+0x480/0x480 [ 41.936850] [] pfkey_dump_sp+0x42/0x50 [ 41.942358] [] pfkey_do_dump+0x67/0x2f0 [ 41.947956] [] pfkey_spddump+0x1a0/0x210 [ 41.953640] [] ? pfkey_recvmsg+0x510/0x510 [ 41.959497] [] pfkey_process+0x619/0x730 [ 41.965178] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 41.971994] [] pfkey_sendmsg+0x3af/0x750 [ 41.977681] [] ? pfkey_spdget+0x810/0x810 [ 41.983461] [] sock_sendmsg+0xca/0x110 [ 41.988974] [] sock_write_iter+0x226/0x3b0 [ 41.994834] [] ? avc_has_perm_noaudit+0x450/0x450 [ 42.001299] [] ? sock_sendmsg+0x110/0x110 [ 42.007072] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 42.014154] [] ? iov_iter_init+0xaf/0x1d0 [ 42.019926] [] __vfs_write+0x4bf/0x680 [ 42.025441] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 42.032528] [] ? default_llseek+0x290/0x290 [ 42.038484] [] ? selinux_file_permission+0x82/0x460 [ 42.045134] [] ? rw_verify_area+0xe5/0x2b0 [ 42.051004] [] vfs_write+0x170/0x4e0 [ 42.056349] [] SyS_write+0xd9/0x1b0 [ 42.061603] [] ? SyS_read+0x1b0/0x1b0 [ 42.067027] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.073588] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 42.080137] Code: 00 00 00 c7 45 c0 10 00 00 00 e9 31 e5 ff ff e8 2c 0a e1 fd 48 8b 45 d0 be 01 00 00 00 66 89 70 04 e9 3e f5 ff ff e8 15 0a e1 fd <0f> 0b e8 3e 35 fe fd e9 51 ff ff ff be 02 00 00 00 48 89 45 d0 [ 42.106572] RIP [] pfkey_xfrm_policy2msg+0x1b6b/0x2100 [ 42.113597] RSP [ 42.117269] ---[ end trace 57bd7f03450215e4 ]--- [ 42.122005] Kernel panic - not syncing: Fatal exception in interrupt [ 42.128757] Dumping ftrace buffer: [ 42.132268] (ftrace buffer empty) [ 42.135948] Kernel Offset: disabled [ 42.139549] Rebooting in 86400 seconds..