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-6,10.128.15.209' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   60.741408] kasan: CONFIG_KASAN_INLINE enabled
[   60.742162] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   60.743278] general protection fault: 0000 [#1] SMP KASAN
[   60.744015] Dumping ftrace buffer:
[   60.744503]    (ftrace buffer empty)
[   60.744997] Modules linked in:
[   60.745429] CPU: 0 PID: 2997 Comm: syzkaller259522 Not tainted 4.14.0-rc7-next-20171103+ #38
[   60.746558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   60.747805] task: ffff8801ce416040 task.stack: ffff8801ce240000
[   60.748620] RIP: 0010:asn1_ber_decoder+0x41e/0x1af0
[   60.749328] RSP: 0018:ffff8801ce2478d0 EFLAGS: 00010246
[   60.750037] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   60.750989] RDX: 0000000000000000 RSI: ffff8801ce1e6900 RDI: ffffffff853f1920
[   60.751940] RBP: ffff8801ce247b88 R08: 0000000000000060 R09: 0000000000000000
[   60.752891] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   60.753855] R13: 0000000000000000 R14: ffff8801ce247b60 R15: dffffc0000000000
[   60.754806] FS:  0000000001aba880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   60.755881] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.756670] CR2: 0000000020e5d000 CR3: 00000001d0c41000 CR4: 00000000001406f0
[   60.757622] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   60.758573] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   60.759524] Call Trace:
[   60.759890]  ? pkcs7_parse_message+0x18a/0x730
[   60.760501]  ? verify_pkcs7_signature+0x8d/0x290
[   60.761133]  ? pkcs7_preparse+0x7b/0xc0
[   60.762675]  ? depot_save_stack+0x490/0x490
[   60.766964]  ? __lock_is_held+0xbc/0x140
[   60.770997]  ? __lock_is_held+0xbc/0x140
[   60.775029]  ? pkcs7_parse_message+0x18a/0x730
[   60.779576]  ? rcu_read_lock_sched_held+0x108/0x120
[   60.784557]  ? kmem_cache_alloc_trace+0x459/0x750
[   60.789375]  ? lock_release+0xd70/0xd70
[   60.793318]  pkcs7_parse_message+0x2b3/0x730
[   60.797691]  ? key_task_permission+0x330/0x330
[   60.802246]  ? pkcs7_supply_detached_data+0x90/0x90
[   60.807232]  verify_pkcs7_signature+0x8d/0x290
[   60.811785]  ? restrict_link_by_builtin_and_secondary_trusted+0x80/0x80
[   60.818501]  ? __down_interruptible+0x6b0/0x6b0
[   60.823133]  ? trace_hardirqs_on+0xd/0x10
[   60.827248]  ? current_kernel_time64+0x1d4/0x2f0
[   60.831969]  ? pkcs7_supply_detached_data+0x90/0x90
[   60.836948]  pkcs7_preparse+0x7b/0xc0
[   60.840714]  ? pkcs7_preparse+0xc0/0xc0
[   60.844655]  key_create_or_update+0x533/0x1040
[   60.849208]  ? key_type_lookup+0xd0/0xd0
[   60.853235]  ? join_session_keyring+0x300/0x300
[   60.857869]  ? mem_cgroup_commit_charge+0x111/0x750
[   60.862865]  ? memdup_user+0x5e/0x90
[   60.866546]  SyS_add_key+0x18a/0x340
[   60.870223]  ? key_get_type_from_user.constprop.10+0xd0/0xd0
[   60.875985]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   60.880973]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   60.885691] RIP: 0033:0x43fcd9
[   60.888846] RSP: 002b:00007ffe47bac7f8 EFLAGS: 00000217 ORIG_RAX: 00000000000000f8
[   60.896519] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fcd9
[   60.903753] RDX: 0000000020000000 RSI: 0000000020bc4ffb RDI: 0000000020e5cff5
[   60.910990] RBP: 0000000000000086 R08: ffffffffffffffff R09: 0000000000000000
[   60.918227] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401640
[   60.925460] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000
[   60.932703] 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 
[   60.951772] RIP: asn1_ber_decoder+0x41e/0x1af0 RSP: ffff8801ce2478d0
[   60.958312] ---[ end trace f22b26e28796f76b ]---
[   60.963315] Kernel panic - not syncing: Fatal exception
[   60.968979] Dumping ftrace buffer:
[   60.972483]    (ftrace buffer empty)
[   60.976161] Kernel Offset: disabled
[   60.979756] Rebooting in 86400 seconds..