From e4a6a3424b75f23f6bb1cc479974fc305a4b9f78 Mon Sep 17 00:00:00 2001 From: Kefeng Wang Date: Thu, 13 Jul 2017 14:27:58 +0800 Subject: [PATCH] bpf: fix return in bpf_skb_adjust_net The bpf_skb_adjust_net() ignores the return value of bpf_skb_net_shrink/grow, and always return 0, fix it by return 'ret'. Signed-off-by: Kefeng Wang Acked-by: Daniel Borkmann Signed-off-by: David S. Miller --- net/core/filter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/filter.c b/net/core/filter.c index c7f737058d89..f44fc22fd45a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2248,7 +2248,7 @@ static int bpf_skb_adjust_net(struct sk_buff *skb, s32 len_diff) bpf_skb_net_grow(skb, len_diff_abs); bpf_compute_data_end(skb); - return 0; + return ret; } BPF_CALL_4(bpf_skb_adjust_room, struct sk_buff *, skb, s32, len_diff, -- 2.20.1