Re: [PATCH][next] ASoC: SOF: ipc4-topology: Use size_add() in call to struct_size()

[Kees Cook]

On Fri, Sep 15, 2023 at 01:09:11PM -0600, Gustavo A. R. Silva wrote:
> If, for any reason, the open-coded arithmetic causes a wraparound,
> the protection that `struct_size()` adds against potential integer
> overflows is defeated. Fix this by hardening call to `struct_size()`
> with `size_add()`.
> 
> Fixes: f9efae954905 ("ASoC: SOF: ipc4-topology: Add support for base config extension")
> Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-- 
Kees Cook