Re: [PATCH] crypto: mxs-dcp - fix source scatterlist length access

[Herbert Xu]

On Sun, Jun 21, 2026 at 09:26:16PM +0200, Thorsten Blum wrote:
> mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source
> scatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid
> and could return zero or a stale DMA length, causing encryption and
> decryption to process the wrong number of bytes when
> CONFIG_NEED_SG_DMA_LENGTH=y.
> 
> Use the original scatterlist length instead.
> 
> Fixes: 15b59e7c3733 ("crypto: mxs - Add Freescale MXS DCP driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
> ---
>  drivers/crypto/mxs-dcp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

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