diff options
| author | Patrick McHardy <kaber@trash.net> | 2005-09-08 15:11:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-09-08 15:11:55 -0700 |
| commit | e104411b82f5c4d19752c335492036abdbf5880d (patch) | |
| tree | 03f26f98685689ab6bfa47d5bdbb6730f64bfadb /net/ipv6/tcp_ipv6.c | |
| parent | cf0b450cd5176b68ac7d5bbe68aeae6bb6a5a4b8 (diff) | |
| download | lwn-e104411b82f5c4d19752c335492036abdbf5880d.tar.gz lwn-e104411b82f5c4d19752c335492036abdbf5880d.zip | |
[XFRM]: Always release dst_entry on error in xfrm_lookup
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 246414b27d0e..80643e6b346b 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -632,10 +632,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr, if (final_p) ipv6_addr_copy(&fl.fl6_dst, final_p); - if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) { - dst_release(dst); + if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) goto failure; - } if (saddr == NULL) { saddr = &fl.fl6_src; @@ -888,7 +886,6 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req, } done: - dst_release(dst); if (opt && opt != np->opt) sock_kfree_s(sk, opt, opt->tot_len); return err; @@ -1000,10 +997,8 @@ 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) { - dst_release(buff->dst); + if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0) return; - } ip6_xmit(NULL, buff, &fl, NULL, 0); TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); @@ -1067,10 +1062,8 @@ 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) { - dst_release(buff->dst); + if ((xfrm_lookup(&buff->dst, &fl, NULL, 0)) < 0) return; - } ip6_xmit(NULL, buff, &fl, NULL, 0); TCP_INC_STATS_BH(TCP_MIB_OUTSEGS); return; @@ -1733,7 +1726,6 @@ static int tcp_v6_rebuild_header(struct sock *sk) if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) { sk->sk_err_soft = -err; - dst_release(dst); return err; } @@ -1786,7 +1778,6 @@ static int tcp_v6_xmit(struct sk_buff *skb, int ipfragok) if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) { sk->sk_route_caps = 0; - dst_release(dst); return err; } |