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-rw-r--r--net/ipv4/xfrm4_mode_beet.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/xfrm4_mode_beet.c b/net/ipv4/xfrm4_mode_beet.c
index f68dfd8a0f5c..d419e15d9803 100644
--- a/net/ipv4/xfrm4_mode_beet.c
+++ b/net/ipv4/xfrm4_mode_beet.c
@@ -52,7 +52,7 @@ static int xfrm4_beet_output(struct xfrm_state *x, struct sk_buff *skb)
ph = (struct ip_beet_phdr *)skb->h.raw;
ph->padlen = 4 - (optlen & 4);
- ph->hdrlen = (optlen + ph->padlen + sizeof(*ph)) / 8;
+ ph->hdrlen = optlen / 8;
ph->nexthdr = top_iph->protocol;
if (ph->padlen)
memset(ph + 1, IPOPT_NOP, ph->padlen);
@@ -85,7 +85,7 @@ static int xfrm4_beet_input(struct xfrm_state *x, struct sk_buff *skb)
ph = (struct ip_beet_phdr *)(skb->h.ipiph + 1);
phlen = sizeof(*ph) + ph->padlen;
- optlen = ph->hdrlen * 8 - phlen;
+ optlen = ph->hdrlen * 8 + (IPV4_BEET_PHMAXLEN - phlen);
if (optlen < 0 || optlen & 3 || optlen > 250)
goto out;