On 02/06/20 at 09:51am, Kristen Carlson Accardi wrote: > On Thu, 2020-02-06 at 04:32 -0800, Kees Cook wrote: > > In the past, making kallsyms entirely unreadable seemed to break > > weird > > stuff in userspace. How about having an alternative view that just > > contains a alphanumeric sort of the symbol names (and they will > > continue > > to have zeroed addresses for unprivileged users)? > > > > Or perhaps we wait to hear about this causing a problem, and deal > > with > > it then? :) > > > > Yeah - I don't know what people want here. Clearly, we can't leave > kallsyms the way it is. Removing it entirely is a pretty fast way to > figure out how people use it though :). Kexec-tools and makedumpfile are the users of /proc/kallsyms currently. We use kallsyms to get page_offset_base and _stext.
