VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffde2967c3ab
EPT pointer = 0x00000001cad3801e
BUG: unable to handle kernel paging request at ffffff0100008000
IP: kfree_skb_list net/core/skbuff.c:670 [inline]
IP: skb_release_data+0x3c2/0x790 net/core/skbuff.c:571
PGD 644c067 
P4D 644c067 
PUD 0 

Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 5058 Comm: syz-executor7 Not tainted 4.13.0-rc5-next-20170816+ #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c9558540 task.stack: ffff8801cdc98000
RIP: 0010:kfree_skb_list net/core/skbuff.c:670 [inline]
RIP: 0010:skb_release_data+0x3c2/0x790 net/core/skbuff.c:571
RSP: 0018:ffff8801cdc9eda8 EFLAGS: 00010246
RAX: 1fffffe020001000 RBX: 0000000000000020 RCX: ffffc90003de9000
RDX: 000000000000034c RSI: ffffffff83e00590 RDI: ffff8801c9919f08
RBP: ffff8801cdc9eec8 R08: 0000000000000001 R09: 0000000000000002
R10: ffff8801cdc9f6b0 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffff0100008000 R14: ffff8801cd24b180 R15: 0000000000000000
FS:  00007f3679ee4700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffff0100008000 CR3: 00000001cafbf000 CR4: 00000000001426e0
Call Trace:
 skb_release_all+0x4a/0x60 net/core/skbuff.c:631
 __kfree_skb net/core/skbuff.c:645 [inline]
 kfree_skb+0x15d/0x4c0 net/core/skbuff.c:663
 ip_rcv+0x40a/0x17d0 net/ipv4/ip_input.c:497
 __netif_receive_skb_core+0x19af/0x33d0 net/core/dev.c:4418
 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4456
 netif_receive_skb_internal+0x10b/0x5e0 net/core/dev.c:4527
 netif_receive_skb+0xae/0x390 net/core/dev.c:4551
 tun_rx_batched.isra.43+0x5e7/0x860 drivers/net/tun.c:1221
 tun_get_user+0x11dd/0x2150 drivers/net/tun.c:1542
 tun_chr_write_iter+0xd8/0x190 drivers/net/tun.c:1568
 call_write_iter include/linux/fs.h:1742 [inline]
 new_sync_write fs/read_write.c:457 [inline]
 __vfs_write+0x684/0x970 fs/read_write.c:470
 vfs_write+0x189/0x510 fs/read_write.c:518
 SYSC_write fs/read_write.c:565 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:557
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x40b751
RSP: 002b:00007f3679ee3c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040b751
RDX: 0000000000000036 RSI: 0000000020afefca RDI: 0000000000000015
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000f4246 R11: 0000000000000293 R12: 00000000004b9a1b
R13: 00000000ffffffff R14: 000000002001d000 R15: 0000000000000000
Code: ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 68 08 4d 85 ed 74 2b e8 60 67 8d fd 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 97 03 00 00 <49> 8b 5d 00 4c 89 ef e8 42 cf ff ff 48 85 db 49 89 dd 75 d5 e8 
RIP: kfree_skb_list net/core/skbuff.c:670 [inline] RSP: ffff8801cdc9eda8
RIP: skb_release_data+0x3c2/0x790 net/core/skbuff.c:571 RSP: ffff8801cdc9eda8
CR2: ffffff0100008000
---[ end trace 432d9b626b0591b9 ]---