On Wed, Jun 22, 2016 at 08:29:37PM +0200, Mathias Krause wrote:
> Commit 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG")
> accidentally removed the minimum size check for CRYPTO_MSG_GETALG
> netlink messages. This allows userland to send a truncated
> CRYPTO_MSG_GETALG message as short as a netlink header only making
> crypto_report() operate on uninitialized memory by accessing data
> beyond the end of the netlink message.
>
> Fix this be re-adding the minimum required size of CRYPTO_MSG_GETALG
> messages to the crypto_msg_min[] array.
>
> Fixes: 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG")
> Cc: sta...@vger.kernel.org # v4.2
> Signed-off-by: Mathias Krause <mini...@googlemail.com>
> Cc: Steffen Klassert <steffen.klass...@secunet.com>
> ---
> This should go on top of crypto-2.6/master.
Patch applied to crypto. Thanks!
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