Re: [PATCH v6 3/5] crypto: tegra: Add Tegra Security Engine driver

From: Herbert Xu
Date: Thu Mar 28 2024 - 06:13:42 EST


On Tue, Mar 19, 2024 at 01:53:04PM +0530, Akhil R wrote:
>
> +struct tegra_sha_reqctx {
> + struct ahash_request fallback_req;

This doesn't work because ahash_request is dynamically sized.
So you'll end up clobbering the rest of the struct if a fallback
ends up being used.

You should place the fallback_req at the end of the reqctx and set
the reqsize based on the fallback reqsize.

Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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