On Wed, May 25, 2016 at 2:49 AM, Borislav Petkov wrote:
> On Tue, May 24, 2016 at 03:48:42PM -0700, Andy Lutomirski wrote:
>> If a uaccess instruction fails due to an8 error other than #PF,
>> warn. If the fault is #GP, it most likely indicates access to a
>> non-canonical
On Wed, May 25, 2016 at 2:49 AM, Borislav Petkov wrote:
> On Tue, May 24, 2016 at 03:48:42PM -0700, Andy Lutomirski wrote:
>> If a uaccess instruction fails due to an8 error other than #PF,
>> warn. If the fault is #GP, it most likely indicates access to a
>> non-canonical address, which means
On Tue, May 24, 2016 at 03:48:42PM -0700, Andy Lutomirski wrote:
> If a uaccess instruction fails due to an8 error other than #PF,
> warn. If the fault is #GP, it most likely indicates access to a
> non-canonical address, which means that an access_ok check is
> missing, and that's bad. If the
On Tue, May 24, 2016 at 03:48:42PM -0700, Andy Lutomirski wrote:
> If a uaccess instruction fails due to an8 error other than #PF,
> warn. If the fault is #GP, it most likely indicates access to a
> non-canonical address, which means that an access_ok check is
> missing, and that's bad. If the
If a uaccess instruction fails due to an8 error other than #PF,
warn. If the fault is #GP, it most likely indicates access to a
non-canonical address, which means that an access_ok check is
missing, and that's bad. If the fault is something else (#UD?),
then something is very wrong and we should
If a uaccess instruction fails due to an8 error other than #PF,
warn. If the fault is #GP, it most likely indicates access to a
non-canonical address, which means that an access_ok check is
missing, and that's bad. If the fault is something else (#UD?),
then something is very wrong and we should
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