From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 5 Feb 2007 07:33:10 +0000 (-0800)
Subject: [PACKET]: Fix skb->cb clobbering between aux and sockaddr
X-Git-Tag: v2.6.21-rc1~83^2~65^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffbc61117d32dc4e768f999325ecfb2528d6b303;p=pandora-kernel.git

[PACKET]: Fix skb->cb clobbering between aux and sockaddr

Both aux data and sockaddr tries to use the same buffer which
obviously doesn't work.  We just happen to have 4 bytes free in
the skb->cb if you take away the maximum length of sockaddr_ll.
That's just enough to store the one piece of info from aux data
that we can't generate at recvmsg(2) time.

This is what the following patch does.

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

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