Re: [PATCH] lib: string_helpers: fix potential snprintf() output truncation

From: Bartosz Golaszewski
Date: Tue Oct 22 2024 - 03:30:45 EST


On Tue, Oct 22, 2024 at 9:15 AM Jiri Slaby <jirislaby@xxxxxxxxxx> wrote:
>
> On 21. 10. 24, 12:04, Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> >
> > The output of ".%03u" with the unsigned int in range [0, 4294966295] may
> > get truncated if the target buffer is not 12 bytes.
>
> Perhaps, if you elaborate on how 'remainder' can become > 999?
>

Yeah, I guess it can't. Not sure what we do about such false
positives, do we have some common way to suppress them?

Bart