Re: Linux 3.6-rc5
From: Romain Francoise
Date: Mon Sep 10 2012 - 13:18:13 EST
Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> writes:
> Thanks! I think this patch should fix the problem. Can someone
> please confirm this?
Works for me as well, thanks!
> crypto: authenc - Fix crash with zero-length assoc data
> The authenc code doesn't deal with zero-length associated data
> correctly and ends up constructing a zero-length sg entry which
> causes a crash when it's fed into the crypto system.
> This patch fixes this by avoiding the code-path that triggers
> the SG construction if we have no associated data.
> This isn't the most optimal fix as it means that we'll end up
> using the fallback code-path even when we could still execute
> the digest function. However, this isn't a big deal as nobody
> but the test path would supply zero-length associated data.
> Reported-by: Romain Francoise <romain@xxxxxxxxxxxxx>
> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Feel free to change this to:
Reported-and-tested-by: Romain Francoise <romain@xxxxxxxxxxxxx>
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