Add missing counter decrement to prevent out of bounds memory read. Signed-off-by: Eric Sesterhenn <eric.sesterhenn@xxxxxxxxxxx> diff --git a/net/netfilter/nf_conntrack_h323_asn1.c b/net/netfilter/nf_conntrack_h323_asn1.c index 89b2e46925c4..2a9d1acd0cbd 100644 --- a/net/netfilter/nf_conntrack_h323_asn1.c +++ b/net/netfilter/nf_conntrack_h323_asn1.c @@ -877,6 +877,7 @@ int DecodeQ931(unsigned char *buf, size_t sz, Q931 *q931) if (sz < 1) break; len = *p++; + sz--; if (sz < len) break; p += len; -- Eric Sesterhenn (Principal Security Consultant) X41 D-SEC GmbH, Dennewartstr. 25-27, D-52068 Aachen T: +49 241 9809418-0, Fax: -9 Unternehmenssitz: Aachen, Amtsgericht Aachen: HRB19989 Geschäftsführer: Markus Vervier -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
