[PATCH-resend] fix bug in mac match (ipv6)

[Kis-Szabo Andras]

Harald Welte ....................................... (2001. október 05.)

 Hi!

IPv6: ip6tables MAC match fix (from Harald's one):
--- linux-2.4.9/net/ipv6/netfilter/ip6t_mac.c	Tue Oct  2 18:50:56 2001
+++ linux-2.4.9-ipt_mac-fix/net/ipv6/netfilter/ip6t_mac.c	Tue Oct  2 19:32:20 2001
@@ -20,7 +20,7 @@
 
     /* Is mac pointer valid? */
     return (skb->mac.raw >= skb->head
-	    && skb->mac.raw < skb->head + skb->len - ETH_HLEN
+	    && (skb->mac.raw + ETH_HLEN) <= skb->data
 	    /* If so, compare... */
 	    && ((memcmp(skb->mac.ethernet->h_source, info->srcaddr, ETH_ALEN)
 		== 0) ^ info->invert));

[... other parts snipped ...]

Th LK 2.4.11 and 2.4.12 is out with the bug (the IPv4 part of this bug
is fixed.)

regards,

	kisza

-- 
    Kis-Szabo Andras            BUTE - Schonherz Dormitory
---------------------------/  Favourite tools: Zorp, NetFilter
      kisza@sch.bme.hu    /---Member of the BUTE-MIS-SEARCHlab--->>>>>.Info