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Date: Sun, 29 Sep 2013 05:15:35 +0200 From: Hannes Frederic Sowa <hannes@...essinduktion.org> To: netdev@...r.kernel.org Subject: [PATCH] ipv6: sit: ensure prefixlen <= 128 before calling ipv6_addr_prefix Found with coverity: CID 139492 Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org> --- net/ipv6/sit.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index 7ee5cb9..4011178 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -1004,6 +1004,9 @@ static int ipip6_tunnel_update_6rd(struct ip_tunnel *t, ip6rd->prefixlen + (32 - ip6rd->relay_prefixlen) > 64) return -EINVAL; + if (ip6rd->prefixlen > 128) + return -EINVAL; + ipv6_addr_prefix(&prefix, &ip6rd->prefix, ip6rd->prefixlen); if (!ipv6_addr_equal(&prefix, &ip6rd->prefix)) return -EINVAL; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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