Warning: Permanently added 'ci-upstream-kasan-gce-8,10.128.0.7' (ECDSA) to the list of known hosts.
serialport: Connected to syzkaller.us-central1-c.ci-upstream-kasan-gce-8 port 1 (session ID: e4343a44a7fb4fbdb2a4ca284a0e54caba96f30368db28e49fe4dcbfacd14a0f, active connections: 1).
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

2017/07/25 23:42:32 parsed 1 programs
2017/07/25 23:42:32 executed programs: 0
syzkaller login: [   54.275523] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   54.307596] ------------[ cut here ]------------
[   54.312445] WARNING: CPU: 0 PID: 2921 at arch/x86/kernel/traps.c:788 do_debug+0x4db/0x6e0
[   54.320775] Kernel panic - not syncing: panic_on_warn set ...
[   54.320775] 
[   54.328107] CPU: 0 PID: 2921 Comm: syz-executor0 Not tainted 4.13.0-rc2+ #5
[   54.335172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   54.344494] Call Trace:
[   54.347042]  <#DB>
[   54.349161]  dump_stack+0x194/0x257
[   54.352757]  ? arch_local_irq_restore+0x53/0x53
[   54.357412]  panic+0x1e4/0x417
[   54.360572]  ? __warn+0x1d9/0x1d9
[   54.363991]  ? show_regs_print_info+0x65/0x65
[   54.368466]  ? do_debug+0x4db/0x6e0
[   54.372062]  __warn+0x1c4/0x1d9
[   54.375309]  ? do_debug+0x4db/0x6e0
[   54.378902]  report_bug+0x211/0x2d0
[   54.382510]  fixup_bug+0x40/0x90
[   54.385843]  do_trap+0x260/0x390
[   54.389182]  do_error_trap+0x120/0x390
[   54.393035]  ? lock_downgrade+0x990/0x990
[   54.397151]  ? do_trap+0x390/0x390
[   54.400655]  ? raw_notifier_chain_unregister+0x1b0/0x1b0
[   54.406071]  ? do_debug+0x4db/0x6e0
[   54.409674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   54.414504]  do_invalid_op+0x1b/0x20
[   54.418184]  invalid_op+0x1e/0x30
[   54.421600] RIP: 0010:do_debug+0x4db/0x6e0
[   54.425796] RSP: 0018:ffff8801dc00fe98 EFLAGS: 00010246
[   54.431124] RAX: dffffc0000000000 RBX: ffff8801dc00ff58 RCX: 0000000000000000
[   54.438358] RDX: 1ffff1003b801ffc RSI: 0000000000000001 RDI: ffffffff850c9d98
[   54.445596] RBP: ffff8801dc00ff48 R08: ffff8801dc00ffe8 R09: 0000000000000000
[   54.452838] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004001
[   54.460075] R13: ffff8801d13ac200 R14: 1ffff1003b801fd8 R15: 0000000000004000
[   54.467339]  ? do_debug+0x45b/0x6e0
[   54.470941]  ? ist_enter+0xd0/0xd0
[   54.474450]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   54.479268]  debug+0x3a/0x70
[   54.482251] RIP: 0010:__get_user_4+0x1e/0x30
[   54.486620] RSP: 0018:ffff8801d127f8e8 EFLAGS: 00000287
[   54.491948] RAX: 0000000020000003 RBX: 1ffff1003a24ff22 RCX: 1ffff1003a27594e
[   54.499183] RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000286
[   54.506419] RBP: ffff8801d127fd98 R08: 0000000000000001 R09: 1ffff1003a24fefa
[   54.513653] R10: ffff8801d127f798 R11: 0000000000000000 R12: ffff8801d178a640
[   54.520888] R13: 0000000000000003 R14: 0000000000000008 R15: 0000000000000004
[   54.528145]  </#DB>
[   54.530356]  ? do_ip_setsockopt.isra.12+0x318/0x31e0
[   54.535432]  ? ip_ra_control+0x5c0/0x5c0
[   54.539465]  ? get_futex_key+0x1cf0/0x1cf0
[   54.543667]  ? SyS_socket+0x125/0x200
[   54.547434]  ? kasan_slab_alloc+0x12/0x20
[   54.551549]  ? kmem_cache_alloc+0x101/0x6e0
[   54.555850]  ? find_held_lock+0x35/0x1d0
[   54.559887]  ? __fget+0x333/0x570
[   54.563307]  ? lock_downgrade+0x990/0x990
[   54.567423]  ? lock_release+0xa40/0xa40
[   54.571368]  ? __lock_is_held+0xb6/0x140
[   54.575409]  ? __fget+0x35c/0x570
[   54.578838]  ? iterate_fd+0x3f0/0x3f0
[   54.582605]  ? lock_downgrade+0x990/0x990
[   54.586728]  ? __lock_is_held+0xb6/0x140
[   54.590769]  ? sock_has_perm+0x29c/0x400
[   54.594795]  ? __fget_light+0x297/0x380
[   54.598739]  ? selinux_tun_dev_create+0xc0/0xc0
[   54.603376]  ? selinux_netlbl_socket_setsockopt+0x10c/0x460
[   54.609055]  ? selinux_netlbl_sock_rcv_skb+0x730/0x730
[   54.614298]  ? alloc_file+0x27e/0x390
[   54.618082]  ip_setsockopt+0x3a/0xb0
[   54.621767]  raw_setsockopt+0xb7/0xd0
[   54.625538]  sock_common_setsockopt+0x95/0xd0
[   54.630005]  SyS_setsockopt+0x189/0x360
[   54.633951]  ? SyS_recv+0x40/0x40
[   54.637371]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   54.642180]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   54.647164]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   54.651897]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   54.656623] RIP: 0033:0x4512c9
[   54.659778] RSP: 002b:00007f0bf67efc08 EFLAGS: 00000216 ORIG_RAX: 0000000000000036
[   54.667452] RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 00000000004512c9
[   54.674690] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000008
[   54.681924] RBP: 0000000000000086 R08: 0000000000000004 R09: 0000000000000000
[   54.689161] R10: 0000000020000000 R11: 0000000000000216 R12: 00000000004b93f0
[   54.696398] R13: 00000000ffffffff R14: 0000000020000000 R15: 0000000000fff000
[   54.703805] Dumping ftrace buffer:
[   54.707363]    (ftrace buffer empty)
[   54.711039] Kernel Offset: disabled
[   54.714633] Rebooting in 86400 seconds..