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-kasan-gce-6,10.128.0.45' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   33.414822] ------------[ cut here ]------------
[   33.415618] WARNING: CPU: 0 PID: 2985 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390
[   33.416998] Kernel panic - not syncing: panic_on_warn set ...
[   33.416998] 
[   33.417975] CPU: 0 PID: 2985 Comm: syzkaller969815 Not tainted 4.14.0-rc5+ #142
[   33.418952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.420174] Call Trace:
[   33.420538]  dump_stack+0x194/0x257
[   33.421030]  ? arch_local_irq_restore+0x53/0x53
[   33.421667]  panic+0x1e4/0x417
[   33.422099]  ? __warn+0x1d9/0x1d9
[   33.422565]  ? show_regs_print_info+0x65/0x65
[   33.423180]  ? strp_data_ready+0x2b7/0x390
[   33.423745]  __warn+0x1c4/0x1d9
[   33.424191]  ? strp_data_ready+0x2b7/0x390
[   33.424763]  report_bug+0x211/0x2d0
[   33.425261]  fixup_bug+0x40/0x90
[   33.425719]  do_trap+0x260/0x390
[   33.426181]  do_error_trap+0x120/0x390
[   33.426705]  ? sk_filter_trim_cap+0x3f3/0x9b0
[   33.427308]  ? do_trap+0x390/0x390
[   33.427787]  ? strp_data_ready+0x2b7/0x390
[   33.428366]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   33.429032]  do_invalid_op+0x1b/0x20
[   33.429535]  invalid_op+0x18/0x20
[   33.430002] RIP: 0010:strp_data_ready+0x2b7/0x390
[   33.430644] RSP: 0018:ffff8801d22df7c8 EFLAGS: 00010297
[   33.431356] RAX: ffff8801d1da2780 RBX: ffff8801d29eec48 RCX: 0000000000000000
[   33.432309] RDX: 0000000000000000 RSI: ffff8801d2328920 RDI: ffffffff85cbee20
[   33.433264] RBP: ffff8801d22df7e8 R08: 0000000000000002 R09: 1ffffffff0ce0bca
[   33.434217] R10: ffff8801d22df6b0 R11: 1ffff1003a3b474b R12: ffff8801d2328880
[   33.436561] R13: ffff8801d29eec50 R14: ffff8801d22df950 R15: ffff8801d2328880
[   33.443846]  ? strp_data_ready+0x2b7/0x390
[   33.448052]  psock_data_ready+0x56/0x70
[   33.452000]  unix_dgram_sendmsg+0xa72/0x1600
[   33.456394]  ? unix_shutdown+0x870/0x870
[   33.460442]  ? avc_has_perm+0x43e/0x680
[   33.464394]  ? do_raw_spin_trylock+0x190/0x190
[   33.468966]  unix_seqpacket_sendmsg+0xf3/0x160
[   33.473518]  ? unix_dgram_sendmsg+0x1600/0x1600
[   33.478170]  sock_sendmsg+0xca/0x110
[   33.481855]  sock_write_iter+0x31a/0x5d0
[   33.485895]  ? sock_sendmsg+0x110/0x110
[   33.489848]  ? selinux_capset+0x100/0x100
[   33.493969]  ? __might_sleep+0x6c/0x190
[   33.497918]  do_iter_readv_writev+0x525/0x7f0
[   33.502389]  ? vfs_dedupe_file_range+0x8f0/0x8f0
[   33.507123]  ? rw_verify_area+0xe5/0x2b0
[   33.511159]  do_iter_write+0x154/0x540
[   33.515024]  ? dup_iter+0x260/0x260
[   33.518634]  vfs_writev+0x18a/0x340
[   33.522232]  ? __fget_light+0x297/0x380
[   33.526180]  ? vfs_iter_write+0xb0/0xb0
[   33.530125]  ? up_read+0x1a/0x40
[   33.533464]  ? __do_page_fault+0x3d6/0xd60
[   33.537668]  ? sock_do_ioctl+0x73/0xb0
[   33.541533]  ? mm_fault_error+0x2c0/0x2c0
[   33.545651]  ? dlci_ioctl_set+0x40/0x40
[   33.549604]  ? __fdget_raw+0x20/0x20
[   33.553290]  ? __do_page_fault+0xd60/0xd60
[   33.557500]  do_writev+0xfc/0x2a0
[   33.560922]  ? do_writev+0xfc/0x2a0
[   33.564525]  ? vfs_writev+0x340/0x340
[   33.568326]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   33.573151]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   33.578146]  SyS_writev+0x27/0x30
[   33.581570]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.586294] RIP: 0033:0x43fe99
[   33.589452] RSP: 002b:00007fff75f4e538 EFLAGS: 00000217 ORIG_RAX: 0000000000000014
[   33.597130] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe99
[   33.604369] RDX: 0000000000000005 RSI: 0000000020019fb0 RDI: 0000000000000004
[   33.611605] RBP: 0000000000000082 R08: 0000000000401800 R09: 0000000000401800
[   33.618841] R10: 0000000000401800 R11: 0000000000000217 R12: 0000000000401800
[   33.626078] R13: 0000000000401890 R14: 0000000000000000 R15: 0000000000000000
[   33.633512] Dumping ftrace buffer:
[   33.637068]    (ftrace buffer empty)
[   33.640747] Kernel Offset: disabled
[   33.644346] Rebooting in 86400 seconds..