On Mon, Mar 18, 2024 at 10:49:23PM +0000, Justin Stitt wrote: > strncpy() is deprecated for use on NUL-terminated destination strings > [1] and as such we should prefer more robust and less ambiguous string > interfaces. > > @query is already marked as __nonstring and doesn't need to be > NUL-terminated. Since @id is a string, we can use the self-describing > string API strtomem(). > > Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] > Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] > Link: https://github.com/KSPP/linux/issues/90 > Cc: linux-hardening@xxxxxxxxxxxxxxx > Signed-off-by: Justin Stitt <justinstitt@xxxxxxxxxx> Nice! A textbook use for strtomem(). :) Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
