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BUG: KMSAN: uninit-value in __mkroute_output net/ipv4/route.c:2200 [inline]
BUG: KMSAN: uninit-value in ip_route_output_key_hash_rcu+0x3986/0x40c0 net/ipv4/route.c:2493
CPU: 1 PID: 8745 Comm: syz-executor6 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 __mkroute_output net/ipv4/route.c:2200 [inline]
 ip_route_output_key_hash_rcu+0x3986/0x40c0 net/ipv4/route.c:2493
 ip_route_output_key_hash+0x1ec/0x290 net/ipv4/route.c:2322
 __ip_route_output_key include/net/route.h:126 [inline]
 ip_route_connect include/net/route.h:304 [inline]
 __ip4_datagram_connect+0xb95/0x1530 net/ipv4/datagram.c:51
 ip4_datagram_connect+0xac/0xf0 net/ipv4/datagram.c:92
 inet_dgram_connect+0x2e8/0x4d0 net/ipv4/af_inet.c:542
 SYSC_connect+0x41a/0x510 net/socket.c:1639
 SyS_connect+0x54/0x80 net/socket.c:1620
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455979
RSP: 002b:00007fc4e12d4c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007fc4e12d56d4 RCX: 0000000000455979
RDX: 0000000000000010 RSI: 0000000020000140 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000005a R14: 00000000006f4910 R15: 0000000000000000

Local variable description: ----res@ip_route_output_key_hash
Variable was created at:
 ip_route_output_key_hash+0x6e/0x290 net/ipv4/route.c:2307
 __ip_route_output_key include/net/route.h:126 [inline]
 ip_route_connect include/net/route.h:304 [inline]
 __ip4_datagram_connect+0xb95/0x1530 net/ipv4/datagram.c:51
kernel msg: ebtables bug: please report to author: Wrong len argument
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