On Fri, Jan 05, 2018 at 10:47:15AM -0800, Andy Lutomirski wrote:
> The remaining problem is that, for certain classes of userspace bugs,
> an attacker can take advantage of the vsyscall page's existence at a
> fixed address to cause mischief. So opting out of having it be there
> could be helpful to mitigate attacks.
I understand that but how do you shoo people off the vsyscall page? You
need to tell old binaries about the per-process disablement and new
binaries to move to vdso.
Hmmm, add big fat warnings to vsyscall_64.c?
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
