Re: [PATCH] cifs: Fix smbencrypt() to stop pointing a scatterlist at the stack

[Sergei Shtylyov]

Hello!

On 12/12/2016 11:54 PM, Andy Lutomirski wrote:

> smbencrypt() points a scatterlist to the stack, which is breaks if

   s/is//.

> CONFIG_VMAP_STACK=y.
>
> Fix it by switching to crypto_cipher_encrypt_one().  The new code
> should be considerably faster as an added benefit.
>
> This code is nearly identical to some code that Eric Biggers
> suggested.
>
> Cc: stable@xxxxxxxxxxxxxxx # 4.9 only
> Reported-by: Eric Biggers <ebiggers3@xxxxxxxxx>
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
[...]

MBR, Sergei