csail.mit.edu;
> rost...@goodmis.org; Steven Rostedt ; Linus
> Torvalds
> Subject: RE: [PATCH v4.19.x] make 'user_access_begin()' do 'access_ok()'
>
>
>
> > -Original Message-
> > From: Greg KH
> > Sent: Wednesday, May 27, 2020 9:02 PM
> > To: Ash
csail.mit.edu;
> rost...@goodmis.org; Steven Rostedt ; Linus
> Torvalds
> Subject: Re: [PATCH v4.19.x] make 'user_access_begin()' do 'access_ok()'
>
> On Wed, May 13, 2020 at 05:08:19PM +, Ashwin H wrote:
> > > Ok, but what does that mean for us?
> > >
> >
On Wed, May 13, 2020 at 05:08:19PM +, Ashwin H wrote:
> > Ok, but what does that mean for us?
> >
> > You need to say why you are sending a patch, otherwise we will guess wrong.
>
> In drivers/gpu/drm/i915/i915_gem_execbuffer.c, ioctl functions does
> user_access_begin() without doing
> Ok, but what does that mean for us?
>
> You need to say why you are sending a patch, otherwise we will guess wrong.
In drivers/gpu/drm/i915/i915_gem_execbuffer.c, ioctl functions does
user_access_begin() without doing access_ok(Checks if a user space pointer is
valid) first.
A local
On Wed, May 13, 2020 at 06:13:17AM +, Ashwin H wrote:
> This patch fixes CVE-2018-20669 in 4.19 tree.
Ok, but what does that mean for us?
You need to say why you are sending a patch, otherwise we will guess
wrong.
greg k-h
___
dri-devel mailing
This patch fixes CVE-2018-20669 in 4.19 tree.
On 13/05/20, 11:36 AM, "Greg KH" wrote:
On Wed, May 13, 2020 at 07:19:21AM +0530, ashwin-h wrote:
> From: Linus Torvalds
>
> commit 594cc251fdd0d231d342d88b2fdff4bc42fb0690 upstream.
>
> Originally, the rule used to be
On Wed, May 13, 2020 at 07:19:21AM +0530, ashwin-h wrote:
> From: Linus Torvalds
>
> commit 594cc251fdd0d231d342d88b2fdff4bc42fb0690 upstream.
>
> Originally, the rule used to be that you'd have to do access_ok()
> separately, and then user_access_begin() before actually doing the
> direct
