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net: BUG instead of corrupting memory in pskb_expand_head
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 1 Oct 2008 14:09:38 +0000 (07:09 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 1 Oct 2008 14:09:38 +0000 (07:09 -0700)
If the caller of pskb_expand_head specifies a negative nhead
we'll silently overwrite other people's memory.  This patch
makes it BUG instead.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

No differences found
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