From ecc51b6d5ca04bb6346c9ad6b37d6ca8bace12b3 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 12 Dec 2005 14:38:10 -0800 Subject: [PATCH] [TCPv6]: Fix skb leak Spotted by Francois Romieu, thanks! Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 62c0e5bd931c..8827389abaf7 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -992,13 +992,12 @@ static void tcp_v6_send_reset(struct sk_buff *skb) /* sk = NULL, but it is safe for now. RST socket required. */ if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) { - if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0) + if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) { + ip6_xmit(NULL, buff, &fl, NULL, 0); + TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); + TCP_INC_STATS_BH(TCP_MIB_OUTRSTS); return; - - ip6_xmit(NULL, buff, &fl, NULL, 0); - TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); - TCP_INC_STATS_BH(TCP_MIB_OUTRSTS); - return; + } } kfree_skb(buff); @@ -1057,11 +1056,11 @@ static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, u32 win, u32 fl.fl_ip_sport = t1->source; if (!ip6_dst_lookup(NULL, &buff->dst, &fl)) { - if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0) + if (xfrm_lookup(&buff->dst, &fl, NULL, 0) >= 0) { + ip6_xmit(NULL, buff, &fl, NULL, 0); + TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); return; - ip6_xmit(NULL, buff, &fl, NULL, 0); - TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); - return; + } } kfree_skb(buff);