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-1,10.128.15.209' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   38.884878] ------------[ cut here ]------------
[   38.885684] WARNING: CPU: 1 PID: 2985 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390
[   38.887067] Kernel panic - not syncing: panic_on_warn set ...
[   38.887067] 
[   38.888076] CPU: 1 PID: 2985 Comm: syzkaller491684 Not tainted 4.14.0-rc6+ #145
[   38.889050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   38.890303] Call Trace:
[   38.890667]  dump_stack+0x194/0x257
[   38.891161]  ? arch_local_irq_restore+0x53/0x53
[   38.891799]  panic+0x1e4/0x417
[   38.892233]  ? __warn+0x1d9/0x1d9
[   38.892701]  ? show_regs_print_info+0x65/0x65
[   38.893330]  ? strp_data_ready+0x2b7/0x390
[   38.893896]  __warn+0x1c4/0x1d9
[   38.894341]  ? strp_data_ready+0x2b7/0x390
[   38.894938]  report_bug+0x211/0x2d0
[   38.895435]  fixup_bug+0x40/0x90
[   38.895898]  do_trap+0x260/0x390
[   38.896359]  do_error_trap+0x120/0x390
[   38.896885]  ? sk_filter_trim_cap+0x3f3/0x9b0
[   38.897489]  ? do_trap+0x390/0x390
[   38.897968]  ? strp_data_ready+0x2b7/0x390
[   38.898579]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   38.899263]  do_invalid_op+0x1b/0x20
[   38.899784]  invalid_op+0x18/0x20
[   38.900251] RIP: 0010:strp_data_ready+0x2b7/0x390
[   38.900893] RSP: 0018:ffff8801d1f6f7d8 EFLAGS: 00010297
[   38.901604] RAX: ffff8801d1cbe600 RBX: ffff8801d202bc48 RCX: 0000000000000000
[   38.902556] RDX: 0000000000000000 RSI: ffff8801d16fa860 RDI: ffffffff85cbee20
[   38.903543] RBP: ffff8801d1f6f7f8 R08: 0000000000000002 R09: 1ffffffff0ce0bc2
[   38.904547] R10: ffff8801d1f6f6c0 R11: 1ffff1003a397f1b R12: ffff8801d16fa7c0
[   38.908780] R13: ffff8801d202bc50 R14: ffff8801d1f6f960 R15: ffff8801d16fa7c0
[   38.916039]  ? strp_data_ready+0x2b7/0x390
[   38.920248]  psock_data_ready+0x56/0x70
[   38.924195]  unix_dgram_sendmsg+0xa72/0x1600
[   38.928584]  ? unix_shutdown+0x870/0x870
[   38.932613]  ? lock_downgrade+0x990/0x990
[   38.936731]  ? lock_release+0xa40/0xa40
[   38.940688]  unix_seqpacket_sendmsg+0xf3/0x160
[   38.945239]  ? unix_dgram_sendmsg+0x1600/0x1600
[   38.949878]  sock_sendmsg+0xca/0x110
[   38.953562]  ___sys_sendmsg+0x31c/0x890
[   38.957507]  ? copy_msghdr_from_user+0x590/0x590
[   38.962248]  ? __fget_light+0x297/0x380
[   38.966193]  ? fget_raw+0x20/0x20
[   38.969620]  ? __do_page_fault+0x64c/0xd60
[   38.973834]  ? __fdget+0x18/0x20
[   38.977174]  __sys_sendmmsg+0x1e6/0x5f0
[   38.981112]  ? __sys_sendmmsg+0x1e6/0x5f0
[   38.985233]  ? SyS_sendmsg+0x50/0x50
[   38.988917]  ? mm_fault_error+0x2c0/0x2c0
[   38.993040]  ? do_vfs_ioctl+0x486/0x1520
[   38.997080]  ? __do_page_fault+0xd60/0xd60
[   39.001284]  ? fd_install+0xb/0x60
[   39.004791]  ? sock_map_fd+0x53/0x70
[   39.008483]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   39.013470]  SyS_sendmmsg+0x35/0x60
[   39.017070]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   39.021793] RIP: 0033:0x440309
[   39.024949] RSP: 002b:00007fffd8787158 EFLAGS: 00000217 ORIG_RAX: 0000000000000133
[   39.032623] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440309
[   39.039859] RDX: 0000000000000003 RSI: 00000000204eff4c RDI: 0000000000000004
[   39.047093] RBP: 0000000000000082 R08: 0000000000401c70 R09: 0000000000401c70
[   39.054329] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401c70
[   39.061565] R13: 0000000000401d00 R14: 0000000000000000 R15: 0000000000000000
[   39.068990] Dumping ftrace buffer:
[   39.072564]    (ftrace buffer empty)
[   39.076244] Kernel Offset: disabled
[   39.079847] Rebooting in 86400 seconds..