Since 2.5.43, kernel panics by executing BUG() when
received unknown protocol in IPv6 packet.
This is because ip6_input_finish() try to kfree_skb()
while icmpv6_param_prob() has already kfree_skb()'ed the skb.
Thanks.
Patch-Name: Fix BUG When Received Unknown Protocol
Patch-Author: YOSHIFUJI Hideaki / USAGI Project <yoshfuji@linux-ipv6.org>
Index: net/ipv6/ip6_input.c
===================================================================
RCS file: /cvsroot/usagi/usagi/kernel/linux25/net/ipv6/ip6_input.c,v
retrieving revision 1.1.1.3
retrieving revision 1.2
diff -u -r1.1.1.3 -r1.2
--- net/ipv6/ip6_input.c 31 Oct 2002 03:58:27 -0000 1.1.1.3
+++ net/ipv6/ip6_input.c 21 Nov 2002 05:30:59 -0000 1.2
@@ -182,9 +182,10 @@
if (!raw_sk) {
IP6_INC_STATS_BH(Ip6InUnknownProtos);
icmpv6_param_prob(skb, ICMPV6_UNK_NEXTHDR, nhoff);
- } else
+ } else {
IP6_INC_STATS_BH(Ip6InDelivers);
- kfree_skb(skb);
+ kfree_skb(skb);
+ }
}
return 0;
-- Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@linux-ipv6.org> GPG FP: 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/