Re: ray_cs: Avoid reading past end of buffer

[Kalle Valo]

Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> Using memcpy() from a buffer that is shorter than the length copied means
> the destination buffer is being filled with arbitrary data from the kernel
> rodata segment. In this case, the source was made longer, since it did not
> match the destination structure size. Additionally removes a needless cast.
> 
> This was found with the future CONFIG_FORTIFY_SOURCE feature.
> 
> Cc: Daniel Micay <danielmicay@xxxxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>

Patch applied to wireless-drivers-next.git, thanks.

e48d661eb13f ray_cs: Avoid reading past end of buffer

-- 
https://patchwork.kernel.org/patch/9714453/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches