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-386-3,10.128.15.206' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   34.806997] ------------[ cut here ]------------
[   34.807799] WARNING: CPU: 1 PID: 2988 at mm/slab_common.c:970 kmalloc_slab+0x5d/0x70
[   34.809055] Kernel panic - not syncing: panic_on_warn set ...
[   34.809055] 
[   34.810055] CPU: 1 PID: 2988 Comm: syzkaller318249 Not tainted 4.14.0-rc3+ #25
[   34.811032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.812348] Call Trace:
[   34.812716]  dump_stack+0x194/0x257
[   34.813213]  ? arch_local_irq_restore+0x53/0x53
[   34.813851]  panic+0x1e4/0x417
[   34.814304]  ? __warn+0x1d9/0x1d9
[   34.814775]  ? show_regs_print_info+0x65/0x65
[   34.815390]  ? kmalloc_slab+0x5d/0x70
[   34.815918]  __warn+0x1c4/0x1d9
[   34.816414]  ? kmalloc_slab+0x5d/0x70
[   34.816947]  report_bug+0x211/0x2d0
[   34.817444]  fixup_bug+0x40/0x90
[   34.817923]  do_trap+0x260/0x390
[   34.818388]  do_error_trap+0x120/0x390
[   34.818956]  ? do_trap+0x390/0x390
[   34.819451]  ? kmalloc_slab+0x5d/0x70
[   34.819990]  ? lock_release+0xd70/0xd70
[   34.820545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   34.821202]  do_invalid_op+0x1b/0x20
[   34.821708]  invalid_op+0x18/0x20
[   34.822184] RIP: 0010:kmalloc_slab+0x5d/0x70
[   34.822776] RSP: 0018:ffff8801ce7bf310 EFLAGS: 00010246
[   34.823509] RAX: 0000000000000000 RBX: ffff8801ce7bf5a8 RCX: 0000000000000007
[   34.824483] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
[   34.825440] RBP: ffff8801ce7bf310 R08: ffff8801d05e4000 R09: ffff8801ce7bf970
[   34.826397] R10: ffff8801d00041c0 R11: 0000000000000000 R12: ffff8801ce7bf910
[   34.827353] R13: ffff8801ce7bf970 R14: 00000000014080c0 R15: ffff8801cf496000
[   34.834620]  __kmalloc+0x25/0x760
[   34.838050]  ? __ipv6_dev_get_saddr+0x4f0/0x4f0
[   34.842687]  ? ip6_setup_cork+0x1e8/0x15c0
[   34.846896]  ip6_setup_cork+0x1e8/0x15c0
[   34.850937]  ? __ip6_append_data.isra.43+0x32b0/0x32b0
[   34.856197]  ip6_make_skb+0x282/0x530
[   34.859970]  ? ip_reply_glue_bits+0xb0/0xb0
[   34.864264]  ? ip6_push_pending_frames+0xe0/0xe0
[   34.868989]  ? ip6_dst_hoplimit+0x10d/0x420
[   34.873282]  ? ip6_route_output_flags+0x1f1/0x2b0
[   34.878108]  ? __lock_is_held+0xbc/0x140
[   34.882151]  ? ip6_dst_hoplimit+0xc1/0x420
[   34.886355]  ? ip6_find_1stfragopt+0x240/0x240
[   34.890913]  udpv6_sendmsg+0x2769/0x3380
[   34.894946]  ? ip_reply_glue_bits+0xb0/0xb0
[   34.899252]  ? udpv6_setsockopt+0x80/0x80
[   34.903387]  ? lock_downgrade+0x990/0x990
[   34.907505]  ? lock_downgrade+0x990/0x990
[   34.911629]  ? lock_release+0xd70/0xd70
[   34.915599]  ? __local_bh_enable_ip+0x9d/0x160
[   34.920159]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   34.925146]  ? release_sock+0x1d4/0x2a0
[   34.929095]  ? _raw_spin_unlock_bh+0x30/0x40
[   34.933475]  ? release_sock+0x1d4/0x2a0
[   34.937426]  ? udp_v6_get_port+0x9c/0xc0
[   34.941465]  inet_sendmsg+0x11f/0x5e0
[   34.945232]  ? inet_sendmsg+0x11f/0x5e0
[   34.949178]  ? __might_sleep+0x95/0x190
[   34.953128]  ? inet_recvmsg+0x5f0/0x5f0
[   34.957074]  ? selinux_socket_sendmsg+0x36/0x40
[   34.961710]  ? security_socket_sendmsg+0x89/0xb0
[   34.966440]  ? inet_recvmsg+0x5f0/0x5f0
[   34.970387]  sock_sendmsg+0xca/0x110
[   34.974075]  SYSC_sendto+0x358/0x5a0
[   34.977760]  ? SYSC_connect+0x480/0x480
[   34.981732]  ? __handle_mm_fault+0x39c0/0x39c0
[   34.986289]  ? vmacache_find+0x5f/0x280
[   34.990242]  ? up_read+0x1a/0x40
[   34.993580]  ? __do_page_fault+0x3d6/0xd60
[   34.997797]  SyS_sendto+0x40/0x50
[   35.001221]  ? SyS_getpeername+0x30/0x30
[   35.005253]  do_fast_syscall_32+0x3f2/0xf05
[   35.009550]  ? do_int80_syscall_32+0x940/0x940
[   35.014104]  ? kasan_check_read+0x11/0x20
[   35.018224]  ? syscall_return_slowpath+0x510/0x510
[   35.023125]  ? SyS_rt_sigaction+0x94/0x1b0
[   35.027331]  ? lockdep_sys_exit+0x47/0xf0
[   35.031450]  ? retint_user+0x18/0x20
[   35.035140]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   35.039958]  entry_SYSENTER_compat+0x51/0x60
[   35.044334] RIP: 0023:0xf7f72c79
[   35.047666] RSP: 002b:00000000ffdd610c EFLAGS: 00000282 ORIG_RAX: 0000000000000171
[   35.055344] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000002052bfcc
[   35.062585] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020e0afe4
[   35.069829] RBP: 000000000000001c R08: 0000000000000000 R09: 0000000000000000
[   35.077069] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   35.084308] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   35.091700] Dumping ftrace buffer:
[   35.095246]    (ftrace buffer empty)
[   35.098931] Kernel Offset: disabled
[   35.102540] Rebooting in 86400 seconds..