executing program
syzkaller login: [   16.099076] BUG: unable to handle kernel paging request at fffffbffffffff78
[   16.099977] IP: vsock_diag_dump+0x290/0xa80
[   16.100443] PGD 7fff4067 P4D 7fff4067 PUD 7fff3067 PMD 7fff2067 PTE 0
[   16.101153] Oops: 0000 [#1] SMP KASAN
[   16.101512] Dumping ftrace buffer:
[   16.101840]    (ftrace buffer empty)
[   16.102184] Modules linked in:
[   16.102490] CPU: 2 PID: 3005 Comm: syzkaller000207 Not tainted 4.14.0-rc5-next-20171018+ #8
[   16.103301] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   16.104073] task: ffff88003d1ea200 task.stack: ffff88003d650000
[   16.104675] RIP: 0010:vsock_diag_dump+0x290/0xa80
[   16.105146] RSP: 0018:ffff88003d6573d0 EFLAGS: 00010a06
[   16.105664] RAX: 1fffffffffffff78 RBX: fffffffffffffb90 RCX: ffffffff84dd56f5
[   16.106361] RDX: 0000000000000000 RSI: 0000000000000001 RDI: fffffffffffffbc0
[   16.107160] RBP: ffff88003d6574e0 R08: ffffffff86b9e520 R09: 0000000000000002
[   16.107868] R10: ffff88003d657288 R11: 1ffff10007a3d69b R12: dffffc0000000000
[   16.108572] R13: 0000000000000000 R14: ffffffff879183e0 R15: ffff88003d6574b8
[   16.109275] FS:  00000000011dd880(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000
[   16.110071] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.110646] CR2: fffffbffffffff78 CR3: 0000000069d77000 CR4: 00000000000006e0
[   16.111440] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   16.112151] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   16.112857] Call Trace:
[   16.113112]  ? netlink_lookup+0x620/0xa90
[   16.113516]  ? sk_diag_fill.constprop.2+0x520/0x520
[   16.113998]  netlink_dump+0x46b/0xb90
[   16.114366]  ? netlink_broadcast+0x50/0x50
[   16.114774]  ? refcount_add+0x60/0x60
[   16.115222]  ? find_held_lock+0x35/0x1d0
[   16.115620]  __netlink_dump_start+0x4b4/0x6a0
[   16.116054]  vsock_diag_handler_dump+0x206/0x2c0
[   16.116512]  ? vsock_addr_unbind+0x20/0x20
[   16.116924]  ? sk_diag_fill.constprop.2+0x520/0x520
[   16.117418]  sock_diag_rcv_msg+0x204/0x390
[   16.117834]  ? sock_has_perm+0x29c/0x400
[   16.118234]  netlink_rcv_skb+0x216/0x440
[   16.118624]  ? sock_diag_bind+0x80/0x80
[   16.119073]  ? netlink_ack+0xab0/0xab0
[   16.119440]  ? netlink_skb_destructor+0x1d0/0x1d0
[   16.119904]  sock_diag_rcv+0x2a/0x40
[   16.120690]  netlink_unicast+0x4e8/0x6f0
[   16.121085]  ? netlink_attachskb+0x8a0/0x8a0
[   16.121508]  ? security_netlink_send+0x81/0xb0
[   16.121948]  netlink_sendmsg+0xa4a/0xe60
[   16.122344]  ? netlink_unicast+0x6f0/0x6f0
[   16.122755]  ? security_socket_sendmsg+0x89/0xb0
[   16.123220]  ? netlink_unicast+0x6f0/0x6f0
[   16.123623]  sock_sendmsg+0xca/0x110
[   16.123977]  sock_write_iter+0x31a/0x5d0
[   16.124362]  ? sock_sendmsg+0x110/0x110
[   16.124745]  ? selinux_task_alloc+0xc0/0xc0
[   16.125147]  ? __might_sleep+0x3c/0x190
[   16.125530]  do_iter_readv_writev+0x525/0x7f0
[   16.125964]  ? vfs_dedupe_file_range+0x8f0/0x8f0
[   16.126419]  ? rw_verify_area+0xe5/0x2b0
[   16.126807]  do_iter_write+0x154/0x540
[   16.127251]  ? dup_iter+0x260/0x260
[   16.127602]  ? handle_mm_fault+0x410/0x8d0
[   16.128010]  ? __do_page_fault+0x31e/0xd60
[   16.128418]  vfs_writev+0x18a/0x340
[   16.128767]  ? __fget_light+0x297/0x380
[   16.129187]  ? vfs_iter_write+0xb0/0xb0
[   16.129567]  ? __do_page_fault+0x3d6/0xd60
[   16.130021]  ? mm_fault_error+0x2c0/0x2c0
[   16.130478]  ? sock_alloc_file+0x2b0/0x550
[   16.130881]  ? __fdget_pos+0x130/0x190
[   16.131263]  ? do_page_fault+0xee/0x720
[   16.131639]  ? __fdget_raw+0x20/0x20
[   16.131998]  ? __do_page_fault+0xd60/0xd60
[   16.132430]  do_writev+0xfc/0x2a0
[   16.132805]  ? do_writev+0xfc/0x2a0
[   16.133167]  ? vfs_writev+0x340/0x340
[   16.133525]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   16.133988]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   16.134463]  SyS_writev+0x27/0x30
[   16.134799]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   16.135291] RIP: 0033:0x434f19
[   16.135594] RSP: 002b:00007ffe2766e7f8 EFLAGS: 00000203 ORIG_RAX: 0000000000000014
[   16.136337] RAX: ffffffffffffffda RBX: 00000000004002b0 RCX: 0000000000434f19
[   16.137039] RDX: 0000000000000001 RSI: 00000000206a3ff0 RDI: 0000000000000003
[   16.137754] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   16.138467] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000
[   16.139230] R13: 0000000000401890 R14: 0000000000401920 R15: 0000000000000000
[   16.139948] Code: 69 07 00 00 48 8b 83 70 04 00 00 49 39 c6 48 8d 98 90 fb ff ff 0f 84 ce 03 00 00 e8 ab 67 91 fc 48 8d 7b 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 2d 07 00 00 48 8b 85 70 ff ff ff 48 3b 43 
[   16.141932] RIP: vsock_diag_dump+0x290/0xa80 RSP: ffff88003d6573d0
[   16.142553] CR2: fffffbffffffff78
[   16.143369] ---[ end trace 858761853d4fdaf7 ]---
[   16.143834] Kernel panic - not syncing: Fatal exception in interrupt
[   16.147065] Dumping ftrace buffer:
[   16.147430]    (ftrace buffer empty)
[   16.147789] Kernel Offset: disabled
[   16.148150] Rebooting in 86400 seconds..