[Intel-gfx] [PATCH] drm/i915: Replace all non-returning strlcpy with strscpy

Rodrigo Vivi rodrigo.vivi at kernel.org
Wed May 24 13:40:28 UTC 2023


On Mon, May 22, 2023 at 01:16:03PM -0700, Kees Cook wrote:
> On Mon, May 22, 2023 at 03:52:28PM +0000, Azeem Shaikh wrote:
> > strlcpy() reads the entire source buffer first.
> > This read may exceed the destination size limit.
> > This is both inefficient and can lead to linear read
> > overflows if a source string is not NUL-terminated [1].
> > In an effort to remove strlcpy() completely [2], replace
> > strlcpy() here with strscpy().
> > No return values were used, so direct replacement is safe.
> > 
> > [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
> > [2] https://github.com/KSPP/linux/issues/89
> > 
> > Signed-off-by: Azeem Shaikh <azeemshaikh38 at gmail.com>
> 
> Reviewed-by: Kees Cook <keescook at chromium.org>

pushed to drm-intel-next. Thanks for the patch and review.

> 
> -- 
> Kees Cook


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