On Tue, Oct 16, 2018 at 5:24 PM, Christian Brauner <christ...@brauner.io> wrote: > Right, but if you write a value that exceeds the buffer of 22 chars that is > used > to parse you already get EINVAL back on current kernels. > So it didn't feel like returning EOVERFLOW or ERANGE might make sense. > I saw a change in 4.10 or 4.11 as well that used EINVAL on UINT_MAX overflow > or something. EINVAL might be enough information for userspace here ?/.
I'd agree: I think there is more precedent for EINVAL. -Kees -- Kees Cook Pixel Security
