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authorEric Dumazet <edumazet@google.com>2021-08-30 19:02:10 -0700
committerDavid S. Miller <davem@davemloft.net>2021-08-31 12:03:03 +0100
commit92548b0ee220e000d81c27ac9a80e0ede895a881 (patch)
tree863f467ab8cda8c7a8f4c401b6e4d18528d03da2 /net
parent616920a6a567e2fc5b9437b84703de717bb7295e (diff)
downloadlinux-92548b0ee220e000d81c27ac9a80e0ede895a881.tar.gz
ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
The UDP length field should be in network order.
This removes the following sparse error:

net/ipv4/route.c:3173:27: warning: incorrect type in assignment (different base types)
net/ipv4/route.c:3173:27:    expected restricted __be16 [usertype] len
net/ipv4/route.c:3173:27:    got unsigned long

Fixes: 404eb77ea766 ("ipv4: support sport, dport and ip_proto in RTM_GETROUTE")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Roopa Prabhu <roopa@nvidia.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/route.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 1b6c8fad6277..d6899ab5fb39 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -3165,7 +3165,7 @@ static struct sk_buff *inet_rtm_getroute_build_skb(__be32 src, __be32 dst,
 		udph = skb_put_zero(skb, sizeof(struct udphdr));
 		udph->source = sport;
 		udph->dest = dport;
-		udph->len = sizeof(struct udphdr);
+		udph->len = htons(sizeof(struct udphdr));
 		udph->check = 0;
 		break;
 	}