On Tue, Oct 31, 2017 at 11:56:15AM +, Gilad Ben-Yossef wrote:
> +
> + /* The IV we are handed may be allocted from the stack so
> + * we must copy it to a DMAable buffer before use.
> + */
> + req_ctx->iv = kmalloc(ivsize, GFP_KERNEL);
> + memcpy(req_ctx->iv, info, ivsize)
We are being passed an IV buffer from unknown origin, which may be
stack allocated and thus not safe for DMA. Allocate a DMA safe
buffer for the IV and use that instead.
Signed-off-by: Gilad Ben-Yossef
---
drivers/staging/ccree/ssi_cipher.c | 16 ++--
drivers/staging/ccree/ssi_cipher
