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Message-Id: <1378476145-6282-1-git-send-email-jiri@resnulli.us> Date: Fri, 6 Sep 2013 16:02:25 +0200 From: Jiri Pirko <jiri@...nulli.us> To: netdev@...r.kernel.org Cc: davem@...emloft.net, kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org, kaber@...sh.net, eldad@...refinery.com Subject: [patch net/stable] ipv6/exthdrs: accept tlv which includes only padding In rfc4942 and rfc2460 I cannot find anything which would implicate to drop packets which have only padding in tlv. Current behaviour breaks TAHI Test v6LC.1.2.6. Problem was intruduced in: 9b905fe6843 "ipv6/exthdrs: strict Pad1 and PadN check" Signed-off-by: Jiri Pirko <jiri@...nulli.us> --- net/ipv6/exthdrs.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 07a7d65..8d67900 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -162,12 +162,6 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs, struct sk_buff *skb) off += optlen; len -= optlen; } - /* This case will not be caught by above check since its padding - * length is smaller than 7: - * 1 byte NH + 1 byte Length + 6 bytes Padding - */ - if ((padlen == 6) && ((off - skb_network_header_len(skb)) == 8)) - goto bad; if (len == 0) return true; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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