On Fri, Feb 21, 2020 at 4:26 PM Chris Wilson wrote:
>
> Quoting Chris Wilson (2020-02-21 15:23:38)
> > Quoting Daniel Vetter (2020-02-21 15:17:24)
> > > On Fri, Feb 21, 2020 at 3:38 PM Chris Wilson
> > > wrote:
> > > > dma_fence_get_rcu() is used to acquire a reference to under a dma-fence
> > >
Quoting Chris Wilson (2020-02-21 15:23:38)
> Quoting Daniel Vetter (2020-02-21 15:17:24)
> > On Fri, Feb 21, 2020 at 3:38 PM Chris Wilson
> > wrote:
> > > dma_fence_get_rcu() is used to acquire a reference to under a dma-fence
> > > under racey conditions -- a perfect recipe for a disaster. As we
Quoting Daniel Vetter (2020-02-21 15:17:24)
> On Fri, Feb 21, 2020 at 3:38 PM Chris Wilson wrote:
> > dma_fence_get_rcu() is used to acquire a reference to under a dma-fence
> > under racey conditions -- a perfect recipe for a disaster. As we know
> > the caller may be handling stale memory, use k
On Fri, Feb 21, 2020 at 3:38 PM Chris Wilson wrote:
> dma_fence_get_rcu() is used to acquire a reference to under a dma-fence
> under racey conditions -- a perfect recipe for a disaster. As we know
> the caller may be handling stale memory, use kasan to confirm the
> dma-fence, or rather its memor
dma_fence_get_rcu() is used to acquire a reference to under a dma-fence
under racey conditions -- a perfect recipe for a disaster. As we know
the caller may be handling stale memory, use kasan to confirm the
dma-fence, or rather its memory block, is valid before attempting to
acquire a reference. T
