Re: [PATCH][next] dmaengine: stm32-mdma: Use struct_size() helper in devm_kzalloc()
From: Kees Cook
Date: Thu Sep 30 2021 - 14:00:54 EST
On Wed, Sep 29, 2021 at 05:29:22PM -0500, Gustavo A. R. Silva wrote:
> Make use of the struct_size() helper instead of an open-coded version,
> in order to avoid any potential type mistakes or integer overflows that,
> in the worse scenario, could lead to heap overflows.
>
> Link: https://github.com/KSPP/linux/issues/160
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
Looks right to me.
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
--
Kees Cook