Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   26.295783] kasan: CONFIG_KASAN_INLINE enabled
[   26.300424] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   26.309360] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   26.315583] Modules linked in:
[   26.318755] CPU: 0 PID: 7958 Comm: syz-executor928 Not tainted 4.14.275-syzkaller #0
[   26.326607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.335937] task: ffff888098f6c540 task.stack: ffff8880914c0000
[   26.341976] RIP: 0010:llc_ui_autobind.isra.0+0x26b/0x390
[   26.347396] RSP: 0018:ffff8880914c7970 EFLAGS: 00010202
[   26.352732] RAX: dffffc0000000000 RBX: ffff8880b36dc300 RCX: 1ffffffff127a4bc
[   26.359976] RDX: 00000000000000a8 RSI: ffff8880914c7c10 RDI: 0000000000000540
[   26.367220] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.374474] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffea
[   26.381720] R13: ffff8880914c7c10 R14: ffff88809493a900 R15: ffff88809493a920
[   26.388970] FS:  0000555556fbe300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
[   26.397168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.403020] CR2: 0000000020001040 CR3: 00000000b43b0000 CR4: 00000000003406f0
[   26.410264] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   26.417508] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   26.424751] Call Trace:
[   26.427320]  llc_ui_sendmsg+0x638/0xec0
[   26.431268]  ? llc_ui_connect+0xab0/0xab0
[   26.435387]  ? copy_msghdr_from_user+0x218/0x3b0
[   26.440124]  ? kernel_recvmsg+0x210/0x210
[   26.444247]  ? trace_hardirqs_on+0x10/0x10
[   26.448457]  ? security_socket_sendmsg+0x83/0xb0
[   26.453187]  ? llc_ui_connect+0xab0/0xab0
[   26.457309]  sock_sendmsg+0xb5/0x100
[   26.461014]  ___sys_sendmsg+0x326/0x800
[   26.464962]  ? copy_msghdr_from_user+0x3b0/0x3b0
[   26.469694]  ? __put_compound_page+0xb0/0xb0
[   26.474076]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[   26.479182]  ? do_huge_pmd_anonymous_page+0xd1e/0x1700
[   26.484478]  ? lock_downgrade+0x740/0x740
[   26.488613]  ? __lru_cache_add+0x178/0x250
[   26.492824]  ? sockfd_lookup_light+0xb2/0x160
[   26.497290]  __sys_sendmmsg+0x129/0x330
[   26.501242]  ? SyS_sendmsg+0x40/0x40
[   26.504936]  ? __handle_mm_fault+0x80f/0x4620
[   26.509410]  ? lock_downgrade+0x740/0x740
[   26.513538]  ? __do_page_fault+0x571/0xad0
[   26.517747]  ? lock_downgrade+0x740/0x740
[   26.521870]  ? up_read+0x17/0x30
[   26.525219]  SyS_sendmmsg+0x2f/0x50
[   26.528823]  ? __sys_sendmmsg+0x330/0x330
[   26.532948]  do_syscall_64+0x1d5/0x640
[   26.536811]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   26.541974] RIP: 0033:0x7f8eca518239
[   26.545659] RSP: 002b:00007fffb7510048 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
[   26.553338] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8eca518239
[   26.560582] RDX: 0000000000000005 RSI: 0000000020001040 RDI: 0000000000000003
[   26.567828] RBP: 00007f8eca4dc220 R08: 0000000000000000 R09: 0000000000000000
[   26.575075] R10: 0000000020000004 R11: 0000000000000246 R12: 00007f8eca4dc2b0
[   26.582319] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   26.589565] Code: 55 ff ff 48 0f ba 73 60 08 45 31 e4 31 ed e8 dd 7c 84 fb 48 8d bd 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f2 00 00 00 48 8b 85 40 05 00 00 65 ff 08 44 
[   26.608808] RIP: llc_ui_autobind.isra.0+0x26b/0x390 RSP: ffff8880914c7970
[   26.620772] ---[ end trace 0882b19e162d7719 ]---
[   26.625520] Kernel panic - not syncing: Fatal exception
[   26.631044] Kernel Offset: disabled
[   26.634650] Rebooting in 86400 seconds..