Re: [PATCH] crypto: drbg - set freed buffers to NULL

From: Herbert Xu
Date: Fri Apr 20 2018 - 12:55:27 EST

On Thu, Apr 12, 2018 at 08:40:55AM +0200, Stephan Müller wrote:
> Add the Fixes, CC stable tags.
> ---8<---
> During freeing of the internal buffers used by the DRBG, set the pointer
> to NULL. It is possible that the context with the freed buffers is
> reused. In case of an error during initialization where the pointers
> do not yet point to allocated memory, the NULL value prevents a double
> free.
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: 3cfc3b9721123 ("crypto: drbg - use aligned buffers")
> Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
> Reported-by: syzbot+75397ee3df5c70164154@xxxxxxxxxxxxxxxxxxxxxxxxx

Patch applied. Thanks.
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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