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

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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

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