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Message-Id: <1289575172-7272-3-git-send-email-kaber@trash.net> Date: Fri, 12 Nov 2010 16:19:32 +0100 From: kaber@...sh.net To: davem@...emloft.net Cc: netfilter-devel@...r.kernel.org, netdev@...r.kernel.org, Shan Wei <shanwei@...fujitsu.com>, Patrick McHardy <kaber@...sh.net> Subject: [PATCH 2/2] netfilter: ipv6: fix overlap check for fragments From: Shan Wei <shanwei@...fujitsu.com> The type of FRAG6_CB(prev)->offset is int, skb->len is *unsigned* int, and offset is int. Without this patch, type conversion occurred to this expression, when (FRAG6_CB(prev)->offset + prev->len) is less than offset. Signed-off-by: Shan Wei <shanwei@...fujitsu.com> Signed-off-by: Patrick McHardy <kaber@...sh.net> --- net/ipv6/netfilter/nf_conntrack_reasm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 3a3f129..79d43aa 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -286,7 +286,7 @@ found: /* Check for overlap with preceding fragment. */ if (prev && - (NFCT_FRAG6_CB(prev)->offset + prev->len) - offset > 0) + (NFCT_FRAG6_CB(prev)->offset + prev->len) > offset) goto discard_fq; /* Look for overlap with succeeding segment. */ -- 1.7.3.2 -- 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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