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-0,10.128.0.10' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.042107] ------------[ cut here ]------------
[   40.042859] WARNING: CPU: 1 PID: 2988 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390
[   40.044161] Kernel panic - not syncing: panic_on_warn set ...
[   40.044161] 
[   40.045154] CPU: 1 PID: 2988 Comm: syzkaller428484 Not tainted 4.14.0-rc6+ #147
[   40.046134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.047354] Call Trace:
[   40.047719]  dump_stack+0x194/0x257
[   40.048213]  ? arch_local_irq_restore+0x53/0x53
[   40.048845]  panic+0x1e4/0x417
[   40.049275]  ? __warn+0x1d9/0x1d9
[   40.049739]  ? show_regs_print_info+0x65/0x65
[   40.050343]  ? retint_kernel+0x10/0x10
[   40.050893]  ? strp_data_ready+0x2b7/0x390
[   40.051487]  __warn+0x1c4/0x1d9
[   40.051937]  ? strp_data_ready+0x2b9/0x390
[   40.052539]  ? strp_data_ready+0x2b7/0x390
[   40.053124]  report_bug+0x211/0x2d0
[   40.053634]  fixup_bug+0x40/0x90
[   40.054088]  do_trap+0x260/0x390
[   40.054549]  do_error_trap+0x120/0x390
[   40.055068]  ? sk_filter_trim_cap+0x3f3/0x9b0
[   40.055686]  ? do_trap+0x390/0x390
[   40.056174]  ? strp_data_ready+0x2b7/0x390
[   40.056750]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   40.057398]  do_invalid_op+0x1b/0x20
[   40.057902]  invalid_op+0x18/0x20
[   40.058368] RIP: 0010:strp_data_ready+0x2b7/0x390
[   40.059009] RSP: 0018:ffff8801d1fcf7d8 EFLAGS: 00010297
[   40.059720] RAX: ffff8801d283c280 RBX: ffff8801d5fbec48 RCX: 0000000000000000
[   40.060673] RDX: 0000000000000000 RSI: ffff8801d5ff7860 RDI: ffffffff85cbee20
[   40.061690] RBP: ffff8801d1fcf7f8 R08: 0000000000000002 R09: 1ffffffff0ce0bc2
[   40.062653] R10: ffff8801d1fcf6c0 R11: 1ffff1003a507aab R12: ffff8801d5ff77c0
[   40.069896] R13: ffff8801d5fbec50 R14: ffff8801d1fcf960 R15: ffff8801d5ff77c0
[   40.077161]  ? strp_data_ready+0x2b7/0x390
[   40.081373]  psock_data_ready+0x56/0x70
[   40.085321]  unix_dgram_sendmsg+0xa72/0x1600
[   40.089728]  ? unix_shutdown+0x870/0x870
[   40.093765]  ? lock_downgrade+0x990/0x990
[   40.097893]  ? lock_release+0xa40/0xa40
[   40.101850]  unix_seqpacket_sendmsg+0xf3/0x160
[   40.106407]  ? unix_dgram_sendmsg+0x1600/0x1600
[   40.111046]  sock_sendmsg+0xca/0x110
[   40.114728]  ___sys_sendmsg+0x31c/0x890
[   40.118674]  ? copy_msghdr_from_user+0x590/0x590
[   40.123423]  ? __do_page_fault+0x64c/0xd60
[   40.127625]  ? lock_downgrade+0x990/0x990
[   40.131748]  ? __fdget+0x18/0x20
[   40.135082]  __sys_sendmmsg+0x1e6/0x5f0
[   40.139022]  ? __sys_sendmmsg+0x1e6/0x5f0
[   40.143143]  ? SyS_sendmsg+0x50/0x50
[   40.146831]  ? mm_fault_error+0x2c0/0x2c0
[   40.150946]  ? do_vfs_ioctl+0x486/0x1520
[   40.154987]  ? __do_page_fault+0xd60/0xd60
[   40.159193]  ? fd_install+0xb/0x60
[   40.162705]  ? sock_map_fd+0x53/0x70
[   40.166397]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   40.171384]  SyS_sendmmsg+0x35/0x60
[   40.174983]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   40.179704] RIP: 0033:0x440f29
[   40.182859] RSP: 002b:00007ffe7ebad9b8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133
[   40.190531] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440f29
[   40.197767] RDX: 0000000000000004 RSI: 0000000020ed9f10 RDI: 0000000000000004
[   40.205003] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   40.212239] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004023f0
[   40.219472] R13: 0000000000402480 R14: 0000000000000000 R15: 0000000000000000
[   40.226855] Dumping ftrace buffer:
[   40.230395]    (ftrace buffer empty)
[   40.234071] Kernel Offset: disabled
[   40.237667] Rebooting in 86400 seconds..