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-rw-r--r--net/netfilter/nf_conntrack_sip.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index bcf47eb518ef..1f81abde131f 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -1461,6 +1461,8 @@ static int sip_help_tcp(struct sk_buff *skb, unsigned int protoff,
end += strlen("\r\n\r\n") + clen;
msglen = origlen = end - dptr;
+ if (msglen > datalen)
+ return NF_DROP;
ret = process_sip_msg(skb, ct, dataoff, &dptr, &msglen);
if (ret != NF_ACCEPT)