[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[   15.966511] rsyslogd (4282) used greatest stack depth: 17328 bytes left
[?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 '10.128.10.6' (ECDSA) to the list of known hosts.
2018/03/27 08:15:46 parsed 1 programs
2018/03/27 08:15:46 executed programs: 0
syzkaller login: [   38.157647] IPVS: ftp: loaded support on port[0] = 21
[   38.196199] WARNING: CPU: 0 PID: 4424 at ./include/net/sock.h:638 smc_unhash_sk+0x335/0x450
[   38.204738] Kernel panic - not syncing: panic_on_warn set ...
[   38.204738] 
[   38.212158] CPU: 0 PID: 4424 Comm: syz-executor0 Not tainted 4.16.0-rc7+ #368
[   38.219400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   38.228722] Call Trace:
[   38.231286]  dump_stack+0x194/0x24d
[   38.234887]  ? arch_local_irq_restore+0x53/0x53
[   38.239529]  ? vsnprintf+0x1ed/0x1900
[   38.243307]  panic+0x1e4/0x41c
[   38.246478]  ? refcount_error_report+0x214/0x214
[   38.251291]  ? show_regs_print_info+0x18/0x18
[   38.255764]  ? __destroy_inode+0x660/0x660
[   38.259973]  ? __warn+0x1c1/0x200
[   38.263488]  ? smc_unhash_sk+0x335/0x450
[   38.267520]  __warn+0x1dc/0x200
[   38.270774]  ? smc_unhash_sk+0x335/0x450
[   38.274809]  report_bug+0x1f4/0x2b0
[   38.278410]  fixup_bug.part.11+0x37/0x80
[   38.282447]  do_error_trap+0x2d7/0x3e0
[   38.286329]  ? math_error+0x400/0x400
[   38.290107]  ? reacquire_held_locks+0x1f9/0x3e0
[   38.294750]  ? lock_acquire+0x1d5/0x580
[   38.298694]  ? lock_acquire+0x1d5/0x580
[   38.302645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   38.307459]  do_invalid_op+0x1b/0x20
[   38.311144]  invalid_op+0x1b/0x40
[   38.314567] RIP: 0010:smc_unhash_sk+0x335/0x450
[   38.319207] RSP: 0018:ffff8801b1597198 EFLAGS: 00010293
[   38.324540] RAX: ffff8801b192e380 RBX: 1ffff100362b2e37 RCX: ffffffff86482335
[   38.331781] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 1ffff100362b2e3b
[   38.339019] RBP: ffff8801b1597280 R08: dffffc0000000000 R09: 0000000000000004
[   38.346260] R10: ffff8801b1597050 R11: 0000000000000004 R12: ffff8801b1597258
[   38.353499] R13: ffffffff88338d80 R14: ffff8801b37cc7c0 R15: 1ffff100362b2e3b
[   38.360751]  ? smc_unhash_sk+0x335/0x450
[   38.364788]  ? smc_unhash_sk+0x335/0x450
[   38.368824]  ? smc_hash_sk+0x2f0/0x2f0
[   38.372683]  ? release_sock+0x1d4/0x2a0
[   38.376715]  ? __local_bh_enable_ip+0x121/0x230
[   38.381368]  ? __release_sock+0x360/0x360
[   38.385494]  ? smc_release+0x23d/0x580
[   38.389357]  ? trace_hardirqs_on+0xd/0x10
[   38.393471]  ? __local_bh_enable_ip+0x121/0x230
[   38.398112]  smc_release+0x322/0x580
[   38.401804]  sock_release+0x8d/0x1e0
[   38.405491]  ? sock_alloc_file+0x560/0x560
[   38.409703]  sock_close+0x16/0x20
[   38.413129]  __fput+0x327/0x7e0
[   38.416386]  ? fput+0x140/0x140
[   38.419647]  ? _raw_spin_unlock_irq+0x27/0x70
[   38.424119]  ____fput+0x15/0x20
[   38.427815]  task_work_run+0x199/0x270
[   38.431678]  ? task_work_cancel+0x210/0x210
[   38.435978]  ? _raw_spin_unlock+0x22/0x30
[   38.440096]  ? switch_task_namespaces+0x87/0xc0
[   38.444743]  do_exit+0x9bb/0x1ad0
[   38.448174]  ? mm_update_next_owner+0x930/0x930
[   38.452817]  ? debug_check_no_locks_freed+0x3c0/0x3c0
[   38.457983]  ? remove_wait_queue+0x1b4/0x350
[   38.462361]  ? lock_downgrade+0x980/0x980
[   38.466483]  ? lock_release+0xa40/0xa40
[   38.470427]  ? smc_tcp_listen_work+0xe60/0xe60
[   38.474988]  ? do_raw_spin_trylock+0x190/0x190
[   38.479544]  ? _raw_spin_unlock_irqrestore+0x31/0xc0
[   38.484622]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   38.489606]  ? trace_hardirqs_on+0xd/0x10
[   38.493736]  ? remove_wait_queue+0x1b4/0x350
[   38.498121]  ? set_normalized_timespec64+0x5a/0xb0
[   38.503025]  ? add_wait_queue+0x290/0x290
[   38.507151]  ? trace_hardirqs_off+0x10/0x10
[   38.511631]  ? fput+0xd2/0x140
[   38.514810]  ? poll_freewait+0x1c1/0x250
[   38.518846]  ? memset+0x31/0x40
[   38.522106]  ? find_held_lock+0x35/0x1d0
[   38.526148]  ? get_signal+0x7a9/0x16d0
[   38.530007]  ? lock_downgrade+0x980/0x980
[   38.534133]  do_group_exit+0x149/0x400
[   38.537993]  ? do_raw_spin_trylock+0x190/0x190
[   38.542547]  ? SyS_exit+0x30/0x30
[   38.545972]  ? _raw_spin_unlock_irq+0x27/0x70
[   38.550441]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   38.555434]  get_signal+0x73a/0x16d0
[   38.559128]  ? ptrace_notify+0x130/0x130
[   38.563163]  ? find_held_lock+0x35/0x1d0
[   38.567216]  do_signal+0x90/0x1e90
[   38.570728]  ? release_sock+0x1d4/0x2a0
[   38.574672]  ? ktime_get_ts64+0x15f/0x4d0
[   38.578798]  ? setup_sigcontext+0x7d0/0x7d0
[   38.583101]  ? timespec64_add_safe+0x1bb/0x2c0
[   38.587658]  ? nsec_to_clock_t+0x30/0x30
[   38.591693]  ? SYSC_bind+0x410/0x410
[   38.595391]  ? exit_to_usermode_loop+0x8c/0x2f0
[   38.600040]  exit_to_usermode_loop+0x258/0x2f0
[   38.604599]  ? trace_event_raw_event_sys_exit+0x260/0x260
[   38.610110]  ? do_syscall_64+0xb7/0x940
[   38.614065]  do_syscall_64+0x6ec/0x940
[   38.617922]  ? __do_page_fault+0xc90/0xc90
[   38.622131]  ? trace_event_raw_event_sys_exit+0x260/0x260
[   38.627642]  ? syscall_return_slowpath+0x550/0x550
[   38.632542]  ? syscall_return_slowpath+0x2ac/0x550
[   38.637451]  ? entry_SYSCALL_64_after_hwframe+0x52/0xb7
[   38.642789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   38.647608]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   38.652767] RIP: 0033:0x454879
[   38.655941] RSP: 002b:00007ffebce2ff08 EFLAGS: 00000246 ORIG_RAX: 0000000000000007
[   38.663628] RAX: 0000000000000001 RBX: 0000000001054914 RCX: 0000000000454879
[   38.670870] RDX: 0000000000000080 RSI: 0000000000000001 RDI: 0000000020000080
[   38.678109] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
[   38.685349] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[   38.692599] R13: 0000000000000460 R14: 00000000006f89a0 R15: 0000000000000003
[   38.700451] Dumping ftrace buffer:
[   38.704077]    (ftrace buffer empty)
[   38.707764] Kernel Offset: disabled
[   38.711367] Rebooting in 86400 seconds..