On Thu, 30 Aug 2018, Andy Lutomirski wrote:
> > On Aug 30, 2018, at 6:36 AM, Thomas Gleixner wrote:
> >
> >> On Wed, 29 Aug 2018, Nadav Amit wrote:
> >> at 8:47 AM, Andy Lutomirski wrote:
> >>
> >>> In NMI context, we might be in the middle of context switching or in
> >>> the middle of switch_
> On Aug 30, 2018, at 6:36 AM, Thomas Gleixner wrote:
>
>> On Wed, 29 Aug 2018, Nadav Amit wrote:
>> at 8:47 AM, Andy Lutomirski wrote:
>>
>>> In NMI context, we might be in the middle of context switching or in
>>> the middle of switch_mm_irqs_off(). In either case, CR3 might not
>>> match
On Wed, 29 Aug 2018, Nadav Amit wrote:
> at 8:47 AM, Andy Lutomirski wrote:
>
> > In NMI context, we might be in the middle of context switching or in
> > the middle of switch_mm_irqs_off(). In either case, CR3 might not
> > match current->mm, which could cause copy_from_user_nmi() and
> > frien
at 8:47 AM, Andy Lutomirski wrote:
> In NMI context, we might be in the middle of context switching or in
> the middle of switch_mm_irqs_off(). In either case, CR3 might not
> match current->mm, which could cause copy_from_user_nmi() and
> friends to read the wrong memory.
>
> Fix it by adding
On Wed, Aug 29, 2018 at 8:49 AM, Rik van Riel wrote:
> On Wed, 2018-08-29 at 08:36 -0700, Andy Lutomirski wrote:
>> On Wed, Aug 29, 2018 at 8:17 AM, Rik van Riel
>> wrote:
>> > On Tue, 2018-08-28 at 20:46 -0700, Andy Lutomirski wrote:
>> > > On Tue, Aug 28, 2018 at 10:56 AM, Rik van Riel
>> > >
On Wed, 2018-08-29 at 08:47 -0700, Andy Lutomirski wrote:
> In NMI context, we might be in the middle of context switching or in
> the middle of switch_mm_irqs_off(). In either case, CR3 might not
> match current->mm, which could cause copy_from_user_nmi() and
> friends to read the wrong memory.
>
On Wed, 2018-08-29 at 08:36 -0700, Andy Lutomirski wrote:
> On Wed, Aug 29, 2018 at 8:17 AM, Rik van Riel
> wrote:
> > On Tue, 2018-08-28 at 20:46 -0700, Andy Lutomirski wrote:
> > > On Tue, Aug 28, 2018 at 10:56 AM, Rik van Riel
> > > wrote:
> > > > On Mon, 27 Aug 2018 16:04:16 -0700
> > > > And
In NMI context, we might be in the middle of context switching or in
the middle of switch_mm_irqs_off(). In either case, CR3 might not
match current->mm, which could cause copy_from_user_nmi() and
friends to read the wrong memory.
Fix it by adding a new nmi_uaccess_okay() helper and checking it i
On Wed, Aug 29, 2018 at 8:17 AM, Rik van Riel wrote:
> On Tue, 2018-08-28 at 20:46 -0700, Andy Lutomirski wrote:
>> On Tue, Aug 28, 2018 at 10:56 AM, Rik van Riel
>> wrote:
>> > On Mon, 27 Aug 2018 16:04:16 -0700
>> > Andy Lutomirski wrote:
>> >
>> > > The 0day bot is still chewing on this, but
On Tue, 2018-08-28 at 20:46 -0700, Andy Lutomirski wrote:
> On Tue, Aug 28, 2018 at 10:56 AM, Rik van Riel
> wrote:
> > On Mon, 27 Aug 2018 16:04:16 -0700
> > Andy Lutomirski wrote:
> >
> > > The 0day bot is still chewing on this, but I've tested it a bit
> > > locally
> > > and it seems to do t
On Tue, Aug 28, 2018 at 10:56 AM, Rik van Riel wrote:
> On Mon, 27 Aug 2018 16:04:16 -0700
> Andy Lutomirski wrote:
>
>> The 0day bot is still chewing on this, but I've tested it a bit locally
>> and it seems to do the right thing.
>
> Hi Andy,
>
> the version of the patch below should fix the bu
On Mon, 27 Aug 2018 16:04:16 -0700
Andy Lutomirski wrote:
> The 0day bot is still chewing on this, but I've tested it a bit locally
> and it seems to do the right thing.
Hi Andy,
the version of the patch below should fix the bug we talked about
in email yesterday. It should automatically cover
12 matches
Mail list logo
