Re: [PATCH] crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key()

[Herbert Xu]

On Wed, Feb 03, 2021 at 11:28:37AM +0000, Daniele Alessandrelli wrote:
> From: Daniele Alessandrelli <daniele.alessandrelli@xxxxxxxxx>
> 
> The length ('len' parameter) passed to crypto_ecdh_decode_key() is never
> checked against the length encoded in the passed buffer ('buf'
> parameter). This could lead to an out-of-bounds access when the passed
> length is less than the encoded length.
> 
> Add a check to prevent that.
> 
> Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@xxxxxxxxx>
> ---
>  crypto/ecdh_helper.c | 3 +++
>  1 file changed, 3 insertions(+)

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