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| author | David S. Miller <davem@davemloft.net> | 2008-04-02 22:35:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-02 22:35:23 -0700 |
| commit | e1ec1b8ccdf0df6000faa8c2d985ca5f94157e5a (patch) | |
| tree | 4e1ca325dde22f1ac21c9da0be509e87e922e604 /net/llc/llc_input.c | |
| parent | c0f39322c335412339dec16ebfd2a05ceba5ebcf (diff) | |
| parent | 802fb176d8c635ae42da31b80841c26e8c7338a0 (diff) | |
| download | lwn-e1ec1b8ccdf0df6000faa8c2d985ca5f94157e5a.tar.gz lwn-e1ec1b8ccdf0df6000faa8c2d985ca5f94157e5a.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/s2io.c
Diffstat (limited to 'net/llc/llc_input.c')
| -rw-r--r-- | net/llc/llc_input.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index a69c5c427fe3..1c45f172991e 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -117,8 +117,12 @@ static inline int llc_fixup_skb(struct sk_buff *skb) skb_pull(skb, llc_len); if (skb->protocol == htons(ETH_P_802_2)) { __be16 pdulen = eth_hdr(skb)->h_proto; - u16 data_size = ntohs(pdulen) - llc_len; + s32 data_size = ntohs(pdulen) - llc_len; + if (data_size < 0 || + ((skb_tail_pointer(skb) - + (u8 *)pdu) - llc_len) < data_size) + return 0; if (unlikely(pskb_trim_rcsum(skb, data_size))) return 0; } |