netfilter: ipv6: fix overlap check for fragments

[net-next-2.6.git] / net / ipv6 / netfilter / nf_conntrack_reasm.c

diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 3a3f129a44cb3561dd3e135164626f8352c565b7..79d43aa8fa8da80b405689bf7c751d7a9cc89ad4 100644 (file)
--- 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. */