Signed-off-by: Yan Zheng <[email protected]>
Index: net/ipv6/mcast.c
================================================================================
--- linux-2.6.14/net/ipv6/mcast.c 2005-10-30 23:09:33.000000000 +0800
+++ linux/net/ipv6/mcast.c 2005-10-31 13:13:10.000000000 +0800
@@ -1156,7 +1156,12 @@ int igmp6_event_query(struct sk_buff *sk
return 0;
}
/* mark sources to include, if group & source-specific */
- mark = mlh2->nsrcs != 0;
+ if (mlh2->nsrcs != 0) {
+ if (!pskb_may_pull(skb, mlh2->nsrcs * sizeof(struct in6_addr) +
+ (sizeof(struct mld2_query) - sizeof(struct icmp6hdr))))
+ return -EINVAL;
+ mark = 1;
+ }
} else {
in6_dev_put(idev);
return -EINVAL;
-
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