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-2,10.128.15.198' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.913701] kasan: CONFIG_KASAN_INLINE enabled
[   32.914461] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   32.915579] general protection fault: 0000 [#1] SMP KASAN
[   32.916314] Dumping ftrace buffer:
[   32.916786]    (ftrace buffer empty)
[   32.917297] Modules linked in:
[   32.917743] CPU: 0 PID: 2992 Comm: syzkaller161851 Not tainted 4.14.0-rc7-next-20171103+ #38
[   32.918923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.920166] task: ffff8801cf07e300 task.stack: ffff8801cf310000
[   32.920969] RIP: 0010:asn1_ber_decoder+0x41e/0x1af0
[   32.921646] RSP: 0018:ffff8801cf3178d0 EFLAGS: 00010246
[   32.922385] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   32.923337] RDX: 0000000000000000 RSI: ffff8801ce53e600 RDI: ffffffff853f1920
[   32.924286] RBP: ffff8801cf317b88 R08: 0000000000000060 R09: 0000000000000000
[   32.925236] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   32.926202] R13: 0000000000000000 R14: ffff8801cf317b60 R15: dffffc0000000000
[   32.927155] FS:  0000000000f19880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   32.928229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.929003] CR2: 00000000200083d2 CR3: 00000001cebb9000 CR4: 00000000001406f0
[   32.929955] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.930930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.931895] Call Trace:
[   32.932250]  ? pkcs7_parse_message+0x18a/0x730
[   32.932860]  ? verify_pkcs7_signature+0x8d/0x290
[   32.933505]  ? pkcs7_preparse+0x7b/0xc0
[   32.934059]  ? depot_save_stack+0x490/0x490
[   32.938348]  ? __lock_is_held+0xbc/0x140
[   32.942387]  ? __lock_is_held+0xbc/0x140
[   32.946419]  ? pkcs7_parse_message+0x18a/0x730
[   32.950967]  ? rcu_read_lock_sched_held+0x108/0x120
[   32.955949]  ? kmem_cache_alloc_trace+0x459/0x750
[   32.960760]  ? lock_release+0xd70/0xd70
[   32.964702]  pkcs7_parse_message+0x2b3/0x730
[   32.969078]  ? key_task_permission+0x330/0x330
[   32.973629]  ? pkcs7_supply_detached_data+0x90/0x90
[   32.978610]  verify_pkcs7_signature+0x8d/0x290
[   32.983161]  ? restrict_link_by_builtin_and_secondary_trusted+0x80/0x80
[   32.989878]  ? __down_interruptible+0x6b0/0x6b0
[   32.994511]  ? trace_hardirqs_on+0xd/0x10
[   32.998625]  ? current_kernel_time64+0x1d4/0x2f0
[   33.003348]  ? pkcs7_supply_detached_data+0x90/0x90
[   33.008333]  pkcs7_preparse+0x7b/0xc0
[   33.012098]  ? pkcs7_preparse+0xc0/0xc0
[   33.016041]  key_create_or_update+0x533/0x1040
[   33.020590]  ? key_type_lookup+0xd0/0xd0
[   33.024616]  ? join_session_keyring+0x300/0x300
[   33.029249]  ? mem_cgroup_commit_charge+0x111/0x750
[   33.034244]  ? memdup_user+0x5e/0x90
[   33.037926]  SyS_add_key+0x18a/0x340
[   33.041604]  ? key_get_type_from_user.constprop.10+0xd0/0xd0
[   33.047367]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   33.052357]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.057077] RIP: 0033:0x43fd79
[   33.060233] RSP: 002b:00007fff4e934b68 EFLAGS: 00000286 ORIG_RAX: 00000000000000f8
[   33.067905] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fd79
[   33.075141] RDX: 0000000020000000 RSI: 00000000200083d2 RDI: 0000000020009000
[   33.082389] RBP: 0000000000000086 R08: ffffffffffffffff R09: 0000000000000000
[   33.089636] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000004016e0
[   33.096873] R13: 0000000000401770 R14: 0000000000000000 R15: 0000000000000000
[   33.104118] Code: 19 ff 48 8d 43 01 49 89 86 80 fe ff ff 48 89 85 a8 fd ff ff 48 8b 85 c0 fd ff ff 48 01 d8 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <42> 0f b6 14 3a 38 ca 7f 08 84 d2 0f 85 cd 0f 00 00 0f b6 00 88 
[   33.123191] RIP: asn1_ber_decoder+0x41e/0x1af0 RSP: ffff8801cf3178d0
[   33.129713] ---[ end trace cee892d7ac3fb93f ]---
[   33.134470] Kernel panic - not syncing: Fatal exception
[   33.140121] Dumping ftrace buffer:
[   33.143631]    (ftrace buffer empty)
[   33.147308] Kernel Offset: disabled
[   33.150902] Rebooting in 86400 seconds..