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-4,10.128.15.208' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   27.997558] ------------[ cut here ]------------
[   27.998343] WARNING: CPU: 0 PID: 2989 at ./include/net/sock.h:1507 strp_data_ready+0x2b7/0x390
[   27.999607] Kernel panic - not syncing: panic_on_warn set ...
[   27.999607] 
[   28.000602] CPU: 0 PID: 2989 Comm: syzkaller282681 Not tainted 4.14.0-rc5-next-20171018+ #36
[   28.001734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.002954] Call Trace:
[   28.003314]  dump_stack+0x194/0x257
[   28.003815]  ? arch_local_irq_restore+0x53/0x53
[   28.004474]  ? vsnprintf+0x1ed/0x1900
[   28.005016]  panic+0x1e4/0x41c
[   28.005450]  ? refcount_error_report+0x214/0x214
[   28.006100]  ? show_regs_print_info+0x65/0x65
[   28.006707]  ? __warn+0x1a9/0x1e0
[   28.007204]  ? strp_data_ready+0x2b7/0x390
[   28.007770]  __warn+0x1c4/0x1e0
[   28.008230]  ? strp_data_ready+0x2b7/0x390
[   28.008800]  report_bug+0x211/0x2d0
[   28.009298]  fixup_bug+0x40/0x90
[   28.009757]  do_trap+0x260/0x390
[   28.010220]  do_error_trap+0x120/0x390
[   28.010744]  ? sk_filter_trim_cap+0x3f3/0x9b0
[   28.011348]  ? do_trap+0x390/0x390
[   28.011828]  ? strp_data_ready+0x2b7/0x390
[   28.012436]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   28.013087]  do_invalid_op+0x1b/0x20
[   28.013589]  invalid_op+0x18/0x20
[   28.014054] RIP: 0010:strp_data_ready+0x2b7/0x390
[   28.014697] RSP: 0018:ffff8801d22577c8 EFLAGS: 00010293
[   28.015408] RAX: ffff8801d29565c0 RBX: ffff8801d3124c48 RCX: ffffffff847af437
[   28.016374] RDX: 0000000000000000 RSI: ffff8801d5a38860 RDI: ffffffff85cc4be0
[   28.017344] RBP: ffff8801d22577e8 R08: 0000000000000002 R09: 1ffffffff0cddfbe
[   28.020296] R10: ffff8801d22576b0 R11: 1ffff1003a52af13 R12: ffff8801d5a387c0
[   28.027536] R13: ffff8801d3124c50 R14: ffff8801d2257950 R15: ffff8801d5a387c0
[   28.034789]  ? strp_data_ready+0x2b7/0x390
[   28.038998]  ? strp_data_ready+0x2b7/0x390
[   28.043204]  psock_data_ready+0x56/0x70
[   28.047149]  unix_dgram_sendmsg+0xa72/0x1600
[   28.051539]  ? unix_shutdown+0x870/0x870
[   28.055574]  ? avc_has_perm+0x43e/0x680
[   28.059524]  ? do_raw_spin_trylock+0x190/0x190
[   28.064083]  unix_seqpacket_sendmsg+0xf3/0x160
[   28.068654]  ? unix_dgram_sendmsg+0x1600/0x1600
[   28.073295]  sock_sendmsg+0xca/0x110
[   28.076980]  sock_write_iter+0x31a/0x5d0
[   28.081013]  ? sock_sendmsg+0x110/0x110
[   28.084965]  ? selinux_task_alloc+0xc0/0xc0
[   28.089254]  ? __might_sleep+0x3c/0x190
[   28.093201]  do_iter_readv_writev+0x525/0x7f0
[   28.097669]  ? vfs_dedupe_file_range+0x8f0/0x8f0
[   28.102398]  ? rw_verify_area+0xe5/0x2b0
[   28.106429]  do_iter_write+0x154/0x540
[   28.110284]  ? dup_iter+0x260/0x260
[   28.113890]  vfs_writev+0x18a/0x340
[   28.117484]  ? __fget_light+0x297/0x380
[   28.121428]  ? vfs_iter_write+0xb0/0xb0
[   28.125370]  ? up_read+0x1a/0x40
[   28.128708]  ? __do_page_fault+0x3d6/0xd60
[   28.132911]  ? sock_do_ioctl+0x73/0xb0
[   28.136774]  ? mm_fault_error+0x2c0/0x2c0
[   28.140891]  ? dlci_ioctl_set+0x40/0x40
[   28.144846]  ? __fdget_raw+0x20/0x20
[   28.148530]  ? __do_page_fault+0xd60/0xd60
[   28.152735]  do_writev+0xfc/0x2a0
[   28.156156]  ? do_writev+0xfc/0x2a0
[   28.159755]  ? vfs_writev+0x340/0x340
[   28.163527]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   28.168339]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   28.173329]  SyS_writev+0x27/0x30
[   28.176753]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   28.181474] RIP: 0033:0x43fe99
[   28.184632] RSP: 002b:00007ffc8ce44dc8 EFLAGS: 00000217 ORIG_RAX: 0000000000000014
[   28.192307] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe99
[   28.199545] RDX: 0000000000000005 RSI: 0000000020019fb0 RDI: 0000000000000004
[   28.206782] RBP: 0000000000000082 R08: 0000000000401800 R09: 0000000000401800
[   28.214019] R10: 0000000000401800 R11: 0000000000000217 R12: 0000000000401800
[   28.221257] R13: 0000000000401890 R14: 0000000000000000 R15: 0000000000000000
[   28.228661] Dumping ftrace buffer:
[   28.232215]    (ftrace buffer empty)
[   28.235897] Kernel Offset: disabled
[   28.239498] Rebooting in 86400 seconds..