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| author | Shan Wei <shanwei@cn.fujitsu.com> | 2010-11-05 01:56:34 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-08 12:17:06 -0800 |
| commit | f46421416fb6b91513fb687d6503142cd99034a5 (patch) | |
| tree | cad8e340ce9bccec9ff261a1c0d73b18382019af /net/ipv6 | |
| parent | 4c46ee52589a4edd67447214eb489b10fed5c53a (diff) | |
| download | linux-3.10-f46421416fb6b91513fb687d6503142cd99034a5.tar.gz linux-3.10-f46421416fb6b91513fb687d6503142cd99034a5.tar.bz2 linux-3.10-f46421416fb6b91513fb687d6503142cd99034a5.zip | |
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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/reassembly.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index c7ba3149633..0f276645375 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -349,7 +349,7 @@ found: /* Check for overlap with preceding fragment. */ if (prev && - (FRAG6_CB(prev)->offset + prev->len) - offset > 0) + (FRAG6_CB(prev)->offset + prev->len) > offset) goto discard_fq; /* Look for overlap with succeeding segment. */ |