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[IPX]: Header length validation needed
This patch will linearize and check there is enough data. It handles the pprop case as well as avoiding a whole audit of the routing code. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1646,7 +1646,8 @@ static int ipx_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_ty
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ipx_pktsize = ntohs(ipx->ipx_pktsize);
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/* Too small or invalid header? */
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if (ipx_pktsize < sizeof(struct ipxhdr) || ipx_pktsize > skb->len)
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if (ipx_pktsize < sizeof(struct ipxhdr) ||
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!pskb_may_pull(skb, ipx_pktsize))
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goto drop;
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if (ipx->ipx_checksum != IPX_NO_CHECKSUM &&
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