On Thu, Apr 11, 2019 at 12:26 PM Eric Biggers wrote:
> Well, I guess I'll just add __GFP_COMP so I at least don't get spammed with
> useless bug reports.
Thanks, I appreciate it.
> But I don't think it's in any way acceptable to change the semantics of the
> kernel's page allocator but only
On Wed, 2019-04-10 at 16:11 -0700, Eric Biggers wrote:
> You've explained *what* it does again, but not *why*. *Why* do you
> want
> hardened usercopy to detect copies across page boundaries, when there
> is no
> actual buffer overflow?
When some subsystem in the kernel allocates multiple
pages
On Wed, Mar 20, 2019 at 11:57 AM Eric Biggers wrote:
>
> On Tue, Mar 19, 2019 at 10:09:13AM -0700, Eric Biggers wrote:
> > On Tue, Mar 19, 2019 at 12:54:23PM +0100, Geert Uytterhoeven wrote:
> > > When running the sha1-asm crypto selftest on arm with
> > > CONFIG_HARDENED_USERCOPY_PAGESPAN=y:
> >
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