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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 17:17:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 17:17:29 +0100 |
| commit | adf6d34e460387ee3e8f1e1875d52bff51212c7d (patch) | |
| tree | 88ef100143e6184103a608f82dfd232bf6376eaf /net/llc/llc_input.c | |
| parent | d1964dab60ce7c104dd21590e987a8787db18051 (diff) | |
| parent | 3760d31f11bfbd0ead9eaeb8573e0602437a9d7c (diff) | |
Merge branch 'omap2-upstream' into devel
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 c40c9b2a345..bfd2567dd36 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; } |