Re: [PATCH v2 0/5] params: harden string ops and allocatio ops

From: Kees Cook
Date: Mon Oct 02 2023 - 12:58:11 EST


On Mon, Oct 02, 2023 at 03:48:51PM +0300, Andy Shevchenko wrote:
> A couple of patches are for get the string ops, used in the module,
> slightly harden. On top a few cleanups.
>
> Since the main part is rather hardening, I think the Kees' tree is
> the best fit for the series, but I'm open for another option(s).
>
> Changelog v2:
> - dropped the s*printf() --> sysfs_emit() conversion as it revealed
> an issue, i.e. reuse getters with non-page-aligned pointer, which
> would be addressed separately
> - added cover letter and clarified the possible route for the series
> (Luis)
>
> Andy Shevchenko (5):
> params: Introduce the param_unknown_fn type
> params: Do not go over the limit when getting the string length
> params: Use size_add() for kmalloc()
> params: Sort headers
> params: Fix multi-line comment style

Seems like a nice bit of clean-up.

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

--
Kees Cook