[PATCH] drm/amd/pm: Replace all non-returning strlcpy with strscpy

Kees Cook keescook at chromium.org
Mon May 22 20:16:07 UTC 2023


On Mon, May 22, 2023 at 03:52:45PM +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>

-- 
Kees Cook


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