On Thu, Feb 08, 2024 at 08:44:22AM +0000, Lee Jones wrote: > Since snprintf() has the documented, but still rather strange trait of > returning the length of the data that *would have been* written to the > array if space were available, rather than the arguably more useful > length of data *actually* written, it is usually considered wise to use > something else instead in order to avoid confusion. > > In the case of sysfs call-backs, new wrappers exist that do just that. > > Link: https://lwn.net/Articles/69419/ > Link: https://github.com/KSPP/linux/issues/105 > Signed-off-by: Lee Jones <lee@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
