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| author | Shan Wei <shanwei@cn.fujitsu.com> | 2010-11-12 08:51:55 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2010-11-12 08:51:55 +0100 |
| commit | 22e091e5253da1e9ad7c0a82c2c84446fc403efe (patch) | |
| tree | b3f892779ab637002bfb9e32c74905b13f81ec75 /net/ipv6 | |
| parent | ac5aa2e3332ec04889074afdbd1479424d0227a5 (diff) | |
| download | linux-22e091e5253da1e9ad7c0a82c2c84446fc403efe.tar.gz linux-22e091e5253da1e9ad7c0a82c2c84446fc403efe.tar.bz2 linux-22e091e5253da1e9ad7c0a82c2c84446fc403efe.zip | |
netfilter: ipv6: fix overlap check for fragments
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@cn.fujitsu.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | 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 3a3f129a44cb..79d43aa8fa8d 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. */ |