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-1,10.128.0.60' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   55.963272] kasan: CONFIG_KASAN_INLINE enabled
[   55.964065] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   55.965359] general protection fault: 0000 [#1] SMP KASAN
[   55.966105] Dumping ftrace buffer:
[   55.966580]    (ftrace buffer empty)
[   55.967130] Modules linked in:
[   55.967565] CPU: 1 PID: 2989 Comm: syzkaller268800 Not tainted 4.14.0-rc5-mm1+ #20
[   55.968650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.969948] task: ffff8801d1dd60c0 task.stack: ffff8801d1c80000
[   55.970753] RIP: 0010:asn1_ber_decoder+0x431/0x1c20
[   55.971430] RSP: 0018:ffff8801d1c87908 EFLAGS: 00010246
[   55.972139] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   55.973111] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff851d1208
[   55.974230] RBP: ffff8801d1c87bc0 R08: 0000000000000001 R09: 0000000000000000
[   55.975193] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   55.976355] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801d1c87b98
[   55.977320] FS:  0000000000e6c880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   55.978431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.979220] CR2: 0000000020000000 CR3: 00000001d75bb000 CR4: 00000000001406e0
[   55.980192] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   55.981144] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   55.982107] Call Trace:
[   55.982466]  ? pkcs7_parse_message+0x18a/0x710
[   55.983076]  ? verify_pkcs7_signature+0x8d/0x290
[   55.985781]  ? entry_SYSCALL_64_fastpath+0x1e/0xbe
[   55.990691]  ? depot_save_stack+0x490/0x490
[   55.994983]  ? __lock_is_held+0xb6/0x140
[   55.999016]  ? __lock_is_held+0xb6/0x140
[   56.003048]  ? pkcs7_parse_message+0x18a/0x710
[   56.007597]  ? rcu_read_lock_sched_held+0x108/0x120
[   56.012578]  ? kmem_cache_alloc_trace+0x456/0x750
[   56.017386]  ? lock_release+0xa40/0xa40
[   56.021326]  pkcs7_parse_message+0x2b3/0x710
[   56.025702]  verify_pkcs7_signature+0x8d/0x290
[   56.030250]  ? restrict_link_by_builtin_and_secondary_trusted+0x80/0x80
[   56.036969]  ? __down_interruptible+0x6b0/0x6b0
[   56.041604]  ? current_kernel_time64+0x1d4/0x2f0
[   56.046324]  ? pkcs7_supply_detached_data+0x90/0x90
[   56.051306]  pkcs7_preparse+0x7b/0xc0
[   56.055069]  ? pkcs7_preparse+0xc0/0xc0
[   56.059013]  key_create_or_update+0x4c6/0xe20
[   56.063473]  ? key_type_lookup+0xd0/0xd0
[   56.067498]  ? join_session_keyring+0x300/0x300
[   56.072140]  ? memdup_user+0x5e/0x90
[   56.075821]  SyS_add_key+0x18a/0x340
[   56.079501]  ? key_get_type_from_user.constprop.10+0xd0/0xd0
[   56.085260]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   56.090245]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   56.094963] RIP: 0033:0x43fcd9
[   56.098119] RSP: 002b:00007ffc8adf3458 EFLAGS: 00000217 ORIG_RAX: 00000000000000f8
[   56.105789] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcd9
[   56.113021] RDX: 0000000020000000 RSI: 0000000020000ffb RDI: 0000000020000000
[   56.120428] RBP: 0000000000000082 R08: fffffffffffffffc R09: 0000000000000000
[   56.127664] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401640
[   56.134897] R13: 00000000004016d0 R14: 0000000000000000 R15: 0000000000000000
[   56.142137] 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 
[   56.161202] RIP: asn1_ber_decoder+0x431/0x1c20 RSP: ffff8801d1c87908
[   56.167835] ---[ end trace ebb89f84c21844ae ]---
[   56.172575] Kernel panic - not syncing: Fatal exception
[   56.178368] Dumping ftrace buffer:
[   56.181883]    (ftrace buffer empty)
[   56.185562] Kernel Offset: disabled
[   56.189157] Rebooting in 86400 seconds..