From: Yan Zheng <yanzheng@21cn.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, David Stevens <dlstevens@us.ibm.com>
Subject: [PATCH][MCAST]IPv6: Check packet size when process Multicast Address and Source Specific Query
Date: Mon, 31 Oct 2005 13:20:21 +0800 [thread overview]
Message-ID: <4365A995.3050404@21cn.com> (raw)
Signed-off-by: Yan Zheng <yanzheng@21cn.com>
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;
next reply other threads:[~2005-10-31 5:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-31 5:20 Yan Zheng [this message]
2005-10-31 5:27 ` [PATCH][MCAST]IPv6: Check packet size when process Multicast Address and Source Specific Query YOSHIFUJI Hideaki / 吉藤英明
2005-10-31 12:09 ` Yan Zheng
2005-10-31 12:15 ` YOSHIFUJI Hideaki / 吉藤英明
2005-10-31 19:42 ` David Stevens
2005-11-01 4:20 ` Yan Zheng
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