From 257a525fe2e49584842c504a92c27097407f778f Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Fri, 31 May 2019 15:29:13 -0700 Subject: bpf: udp: Avoid calling reuseport's bpf_prog from udp_gro When the commit a6024562ffd7 ("udp: Add GRO functions to UDP socket") added udp[46]_lib_lookup_skb to the udp_gro code path, it broke the reuseport_select_sock() assumption that skb->data is pointing to the transport header. This patch follows an earlier __udp6_lib_err() fix by passing a NULL skb to avoid calling the reuseport's bpf_prog. Fixes: a6024562ffd7 ("udp: Add GRO functions to UDP socket") Cc: Tom Herbert Signed-off-by: Martin KaFai Lau Acked-by: Song Liu Signed-off-by: Alexei Starovoitov --- net/ipv6/udp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv6') diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 133e6370f89c..4e52c37bb836 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -243,7 +243,7 @@ struct sock *udp6_lib_lookup_skb(struct sk_buff *skb, return __udp6_lib_lookup(dev_net(skb->dev), &iph->saddr, sport, &iph->daddr, dport, inet6_iif(skb), - inet6_sdif(skb), &udp_table, skb); + inet6_sdif(skb), &udp_table, NULL); } EXPORT_SYMBOL_GPL(udp6_lib_lookup_skb); -- cgit