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-5,10.128.0.15' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   17.182837] kasan: CONFIG_KASAN_INLINE enabled
[   17.183549] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   17.184708] general protection fault: 0000 [#1] SMP KASAN
[   17.185487] Dumping ftrace buffer:
[   17.185971]    (ftrace buffer empty)
[   17.186479] Modules linked in:
[   17.186912] CPU: 0 PID: 2990 Comm: syzkaller888396 Not tainted 4.14.0-rc7-next-20171103+ #38
[   17.188037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   17.189257] task: ffff8801d07364c0 task.stack: ffff8801ce7c8000
[   17.190066] RIP: 0010:asn1_ber_decoder+0x41e/0x1af0
[   17.190730] RSP: 0018:ffff8801ce7cf8d0 EFLAGS: 00010246
[   17.191460] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   17.192411] RDX: 0000000000000000 RSI: ffff8801ce96b780 RDI: ffffffff853f1920
[   17.193363] RBP: ffff8801ce7cfb88 R08: 0000000000000060 R09: 0000000000000000
[   17.194330] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   17.195295] R13: 0000000000000000 R14: ffff8801ce7cfb60 R15: dffffc0000000000
[   17.196258] FS:  0000000000d81880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   17.197361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.198135] CR2: 00000000207c9ffb CR3: 00000001bf317000 CR4: 00000000001406f0
[   17.199115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   17.200065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   17.201018] Call Trace:
[   17.201387]  ? pkcs7_parse_message+0x18a/0x730
[   17.202004]  ? verify_pkcs7_signature+0x8d/0x290
[   17.202639]  ? pkcs7_preparse+0x7b/0xc0
[   17.204635]  ? depot_save_stack+0x490/0x490
[   17.208922]  ? __lock_is_held+0xbc/0x140
[   17.212956]  ? __lock_is_held+0xbc/0x140
[   17.216990]  ? pkcs7_parse_message+0x18a/0x730
[   17.221538]  ? rcu_read_lock_sched_held+0x108/0x120
[   17.226522]  ? kmem_cache_alloc_trace+0x459/0x750
[   17.231339]  ? lock_release+0xd70/0xd70
[   17.235282]  pkcs7_parse_message+0x2b3/0x730
[   17.239655]  ? key_task_permission+0x330/0x330
[   17.244205]  ? pkcs7_supply_detached_data+0x90/0x90
[   17.249186]  verify_pkcs7_signature+0x8d/0x290
[   17.253735]  ? restrict_link_by_builtin_and_secondary_trusted+0x80/0x80
[   17.260451]  ? __down_interruptible+0x6b0/0x6b0
[   17.265083]  ? trace_hardirqs_on+0xd/0x10
[   17.269197]  ? current_kernel_time64+0x1d4/0x2f0
[   17.273920]  ? pkcs7_supply_detached_data+0x90/0x90
[   17.278901]  pkcs7_preparse+0x7b/0xc0
[   17.282664]  ? pkcs7_preparse+0xc0/0xc0
[   17.286605]  key_create_or_update+0x533/0x1040
[   17.291161]  ? key_type_lookup+0xd0/0xd0
[   17.295187]  ? join_session_keyring+0x300/0x300
[   17.299824]  ? mem_cgroup_commit_charge+0x111/0x750
[   17.304818]  ? memdup_user+0x5e/0x90
[   17.308499]  SyS_add_key+0x18a/0x340
[   17.312178]  ? key_get_type_from_user.constprop.10+0xd0/0xd0
[   17.317939]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   17.322926]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   17.327645] RIP: 0033:0x43fcd9
[   17.330799] RSP: 002b:00007fffcb8c1408 EFLAGS: 00000217 ORIG_RAX: 00000000000000f8
[   17.338470] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9
[   17.345703] RDX: 0000000020000000 RSI: 00000000207c9ffb RDI: 000000002009b000
[   17.352939] RBP: 0000000000000086 R08: fffffffffffffffe R09: 0000000000000000
[   17.360172] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401640
[   17.367406] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000
[   17.374648] 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 
[   17.393720] RIP: asn1_ber_decoder+0x41e/0x1af0 RSP: ffff8801ce7cf8d0
[   17.400251] ---[ end trace 2b5d6af98bc7933f ]---
[   17.405291] Kernel panic - not syncing: Fatal exception
[   17.411041] Dumping ftrace buffer:
[   17.414557]    (ftrace buffer empty)
[   17.418234] Kernel Offset: disabled
[   17.421826] Rebooting in 86400 seconds..