Am Donnerstag, 1. Dezember 2016, 21:22:07 CET schrieb Herbert Xu:

Hi Herbert,

> On Thu, Dec 01, 2016 at 08:22:37AM +0100, Stephan Mueller wrote:
> > Hi Herbert,
> > 
> > I split out the bug fix patch from the AD/tag formatting patch as they
> > most likely will come after the next merge window.
> > 
> > ---8<---
> > 
> > Handle the case when the caller provided a zero buffer to
> > sendmsg/sendpage. Such scenario is legal for AEAD ciphers when no
> > plaintext / ciphertext and no AAD is provided and the caller only
> > requests the generation of the tag value.
> > 
> > Signed-off-by: Stephan Mueller <smuel...@chronox.de>
> 
> Patch applied.  Thanks.

May I suggest to forward that patch to stable as this patch fixes a kernel 
crasher that can be triggered by an unprivileged user?

The bug was introduced in 4.7 with the AEAD AIO addition.

Ciao
Stephan
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