netlink: 'syz-executor4': attribute type 1 has an invalid length.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 24144 Comm: syz-executor7 Not tainted 4.15.0-rc5+ #180
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__netlink_ns_capable+0x8b/0x120 net/netlink/af_netlink.c:868
RSP: 0018:ffff8801c9947190 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84563bc0
RDX: 000000000000007b RSI: ffffc9000465d000 RDI: 00000000000003d8
RBP: ffff8801c99471a8 R08: 0000000000000000 R09: 1ffff10039328e08
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8801d8285670
R13: 000000000000000c R14: 0000000000000010 R15: 0000000000000020
FS:  00007f57d4c64700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020f83fc7 CR3: 00000001d4abe001 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 netlink_ns_capable+0x26/0x30 net/netlink/af_netlink.c:886
 get_target_net+0x9d/0x120 net/core/rtnetlink.c:1765
 rtnl_dump_ifinfo+0x2e5/0xef0 net/core/rtnetlink.c:1806
 netlink_dump+0x492/0xcf0 net/netlink/af_netlink.c:2222
 __netlink_dump_start+0x4f0/0x6d0 net/netlink/af_netlink.c:2319
 netlink_dump_start include/linux/netlink.h:214 [inline]
 rtnetlink_rcv_msg+0x7f0/0xb10 net/core/rtnetlink.c:4485
 netlink_rcv_skb+0x224/0x470 net/netlink/af_netlink.c:2441
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4540
 netlink_unicast_kernel net/netlink/af_netlink.c:1308 [inline]
 netlink_unicast+0x4c4/0x6b0 net/netlink/af_netlink.c:1334
 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1897
 sock_sendmsg_nosec net/socket.c:628 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:638
 sock_write_iter+0x31a/0x5d0 net/socket.c:907
 call_write_iter include/linux/fs.h:1772 [inline]
 do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653
 do_iter_write+0x154/0x540 fs/read_write.c:932
 vfs_writev+0x18a/0x340 fs/read_write.c:977
 do_writev+0xfc/0x2a0 fs/read_write.c:1012
 SYSC_writev fs/read_write.c:1085 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1082
 entry_SYSCALL_64_fastpath+0x23/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f57d4c63c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
RDX: 0000000000000001 RSI: 0000000020b69000 RDI: 0000000000000013
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006ee1a8
R13: 00000000ffffffff R14: 00007f57d4c646d4 R15: 0000000000000000
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 95 00 00 00 48 8b 5b 18 48 b8 00 00 00 00 00 fc ff df 48 8d bb d8 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 80 00 00 00 48 8b 9b d8 03 00 00 48 b8 00 00 
RIP: __netlink_ns_capable+0x8b/0x120 net/netlink/af_netlink.c:868 RSP: ffff8801c9947190
---[ end trace d0599edc1729479e ]---