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authorPatrick McHardy <kaber@trash.net>2007-04-09 11:46:17 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:28:37 -0700
commit557922584d9c5b6b990bcfb2fec3134f0e73a05d (patch)
treef7944ace44efa532fbee23db0709760bfb70ec98 /net
parent56eb88828b78f6f3b11a2996350092a40745301f (diff)
downloadlinux-557922584d9c5b6b990bcfb2fec3134f0e73a05d.tar.bz2
[XFRM]: esp: fix skb_tail_pointer conversion bug
Fix incorrect switch of "trailer" skb by "skb" during skb_tail_pointer conversion: - *(u8*)(trailer->tail - 1) = top_iph->protocol; + *(skb_tail_pointer(skb) - 1) = top_iph->protocol; - *(u8 *)(trailer->tail - 1) = *skb_network_header(skb); + *(skb_tail_pointer(skb) - 1) = *skb_network_header(skb); Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/esp4.c2
-rw-r--r--net/ipv6/esp6.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 5e5613930ffb..bdc65d8af181 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -64,7 +64,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
esph = (struct ip_esp_hdr *)(skb_network_header(skb) +
top_iph->ihl * 4);
top_iph->tot_len = htons(skb->len + alen);
- *(skb_tail_pointer(skb) - 1) = top_iph->protocol;
+ *(skb_tail_pointer(trailer) - 1) = top_iph->protocol;
/* this is non-NULL only with UDP Encapsulation */
if (x->encap) {
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index b8e8914cc002..6b76c4c31137 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -91,7 +91,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
top_iph = (struct ipv6hdr *)__skb_push(skb, hdr_len);
esph = (struct ipv6_esp_hdr *)skb_transport_header(skb);
top_iph->payload_len = htons(skb->len + alen - sizeof(*top_iph));
- *(skb_tail_pointer(skb) - 1) = *skb_network_header(skb);
+ *(skb_tail_pointer(trailer) - 1) = *skb_network_header(skb);
*skb_network_header(skb) = IPPROTO_ESP;
esph->spi = x->id.spi;