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-mmots-kasan-gce-1,10.128.0.36' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   57.073095] kasan: CONFIG_KASAN_INLINE enabled
[   57.073844] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   57.075063] general protection fault: 0000 [#1] SMP KASAN
[   57.075845] Dumping ftrace buffer:
[   57.076320]    (ftrace buffer empty)
[   57.076826] Modules linked in:
[   57.077260] CPU: 1 PID: 2990 Comm: syzkaller973433 Not tainted 4.14.0-rc5-mm1+ #20
[   57.078284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.079523] task: ffff8801d1c006c0 task.stack: ffff8801d1d50000
[   57.080327] RIP: 0010:asn1_ber_decoder+0x431/0x1c20
[   57.080989] RSP: 0018:ffff8801d1d57908 EFLAGS: 00010246
[   57.081697] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   57.082648] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff851d1208
[   57.083615] RBP: ffff8801d1d57bc0 R08: 0000000000000001 R09: 0000000000000000
[   57.084566] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   57.085556] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801d1d57b98
[   57.086509] FS:  0000000000d52880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   57.087656] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.088442] CR2: 0000000020e5d000 CR3: 00000001d2b40000 CR4: 00000000001406e0
[   57.089395] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.090346] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.091300] Call Trace:
[   57.091672]  ? pkcs7_parse_message+0x18a/0x710
[   57.092284]  ? verify_pkcs7_signature+0x8d/0x290
[   57.092922]  ? entry_SYSCALL_64_fastpath+0x1e/0xbe
[   57.095952]  ? depot_save_stack+0x490/0x490
[   57.100245]  ? __lock_is_held+0xb6/0x140
[   57.104283]  ? __lock_is_held+0xb6/0x140
[   57.108323]  ? pkcs7_parse_message+0x18a/0x710
[   57.112872]  ? rcu_read_lock_sched_held+0x108/0x120
[   57.117854]  ? kmem_cache_alloc_trace+0x456/0x750
[   57.122668]  pkcs7_parse_message+0x2b3/0x710
[   57.127043]  verify_pkcs7_signature+0x8d/0x290
[   57.132026]  ? restrict_link_by_builtin_and_secondary_trusted+0x80/0x80
[   57.138744]  ? __down_interruptible+0x6b0/0x6b0
[   57.143381]  ? current_kernel_time64+0x1d4/0x2f0
[   57.148103]  ? pkcs7_supply_detached_data+0x90/0x90
[   57.153085]  pkcs7_preparse+0x7b/0xc0
[   57.156847]  ? pkcs7_preparse+0xc0/0xc0
[   57.160792]  key_create_or_update+0x4c6/0xe20
[   57.165256]  ? key_type_lookup+0xd0/0xd0
[   57.169282]  ? join_session_keyring+0x300/0x300
[   57.173938]  ? memdup_user+0x5e/0x90
[   57.177619]  SyS_add_key+0x18a/0x340
[   57.181300]  ? key_get_type_from_user.constprop.10+0xd0/0xd0
[   57.187061]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   57.192048]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   57.196768] RIP: 0033:0x43fcd9
[   57.199923] RSP: 002b:00007ffda9273728 EFLAGS: 00000217 ORIG_RAX: 00000000000000f8
[   57.207603] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fcd9
[   57.214838] RDX: 0000000020000000 RSI: 0000000020bc4ffb RDI: 0000000020e5cff5
[   57.222073] RBP: 0000000000000082 R08: ffffffffffffffff R09: 0000000000000000
[   57.229308] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401640
[   57.236543] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000
[   57.243787] Code: 1a ff 48 8d 43 01 49 89 87 80 fe ff ff 48 89 85 90 fd ff ff 48 8b 85 b8 fd ff ff 48 01 d8 48 89 c2 48 89 c1 48 c1 ea 03 83 e1 07 <42> 0f b6 14 32 38 ca 7f 08 84 d2 0f 85 e5 0f 00 00 0f b6 00 88 
[   57.262854] RIP: asn1_ber_decoder+0x431/0x1c20 RSP: ffff8801d1d57908
[   57.269362] ---[ end trace db84478888a9666a ]---
[   57.274266] Kernel panic - not syncing: Fatal exception
[   57.279920] Dumping ftrace buffer:
[   57.283428]    (ftrace buffer empty)
[   57.287107] Kernel Offset: disabled
[   57.290702] Rebooting in 86400 seconds..