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-android-49-kasan-gce-2,10.128.0.27' (ECDSA) to the list of known hosts.
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syzkaller login: [   31.040597] kasan: CONFIG_KASAN_INLINE enabled
[   31.041322] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   31.042330] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   31.043149] Dumping ftrace buffer:
[   31.043623]    (ftrace buffer empty)
[   31.044119] Modules linked in:
[   31.044614] CPU: 1 PID: 3488 Comm: syzkaller596593 Not tainted 4.9.62-gf09daf1 #91
[   31.045620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.046845] task: ffff8801c7941800 task.stack: ffff8801c7968000
[   31.047642] RIP: 0010:[<ffffffff82665a6c>]  [<ffffffff82665a6c>] sg_read+0xd0c/0x1440
[   31.048723] RSP: 0018:ffff8801c796fac0  EFLAGS: 00010246
[   31.049440] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000000c
[   31.050390] RDX: 0000000000000000 RSI: 0000000000000060 RDI: ffff8801c7948170
[   31.051344] RBP: ffff8801c796fbc8 R08: 0000000000000000 R09: ffffed003b4679a9
[   31.052296] R10: 0000000000000005 R11: ffffed003b4679a8 R12: 0000000000001000
[   31.053281] R13: 0000000000000000 R14: ffff8801da33cd20 R15: ffff8801c7948140
[   31.054232] FS:  00007fbc6c4e6700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
[   31.055305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.056077] CR2: 0000000020568000 CR3: 00000001c79bc000 CR4: 00000000001406e0
[   31.057041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.057992] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.058983] Stack:
[   31.059279]  ffff8801d5738a40 ffff8801c796faf0 ffff8801c7948158 ffff880100000060
[   31.060407]  0000000000000000 ffff8801c7948168 0000000000000084 0000000000000246
[   31.066483]  ffff8801d140a280 1ffff10038f2df64 0000000020517f7c 0000000020517fa0
[   31.074431] Call Trace:
[   31.076990]  [<ffffffff82664d60>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   31.083626]  [<ffffffff81644550>] ? fsnotify+0xf30/0xf30
[   31.089041]  [<ffffffff81bdbb69>] ? avc_policy_seqno+0x9/0x20
[   31.094893]  [<ffffffff8156cd71>] do_loop_readv_writev.part.17+0x141/0x1e0
[   31.101873]  [<ffffffff81bd2c29>] ? security_file_permission+0x89/0x1e0
[   31.108593]  [<ffffffff82664d60>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   31.115223]  [<ffffffff82664d60>] ? sg_proc_seq_show_debug+0xd10/0xd10
[   31.121856]  [<ffffffff81570be0>] do_readv_writev+0x520/0x750
[   31.127705]  [<ffffffff815706c0>] ? vfs_write+0x530/0x530
[   31.133207]  [<ffffffff815d14c1>] ? __fget+0x201/0x3a0
[   31.138448]  [<ffffffff815d14e8>] ? __fget+0x228/0x3a0
[   31.143686]  [<ffffffff815d1307>] ? __fget+0x47/0x3a0
[   31.148838]  [<ffffffff81570e94>] vfs_readv+0x84/0xc0
[   31.153997]  [<ffffffff81570fb6>] do_readv+0xe6/0x250
[   31.159157]  [<ffffffff81570ed0>] ? vfs_readv+0xc0/0xc0
[   31.164488]  [<ffffffff838af467>] ? entry_SYSCALL_64_fastpath+0x5/0xc6
[   31.171120]  [<ffffffff8123cd6b>] ? trace_hardirqs_on_caller+0x38b/0x590
[   31.177923]  [<ffffffff815744a7>] SyS_readv+0x27/0x30
[   31.183084]  [<ffffffff838af485>] entry_SYSCALL_64_fastpath+0x23/0xc6
[   31.189623] Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8a 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5f 28 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 df 05 00 00 48 8b 1b 48 85 db 0f 84 51 03 00 
[   31.215983] RIP  [<ffffffff82665a6c>] sg_read+0xd0c/0x1440
[   31.221687]  RSP <ffff8801c796fac0>
[   31.225392] ---[ end trace 165b3395ed854a93 ]---
[   31.230152] Kernel panic - not syncing: Fatal exception
[   31.235797] Dumping ftrace buffer:
[   31.239307]    (ftrace buffer empty)
[   31.242985] Kernel Offset: disabled
[   31.246581] Rebooting in 86400 seconds..