Quoting Lionel Landwerlin (2018-05-21 23:20:56)
> On 21/05/18 22:05, Chris Wilson wrote:
> > Smatch identifies i915_query_ioctl() as being a potential victim of
> > Spectre due to it use of a tainted user index into a function pointer
> > array. Use array_index_nospec() to defang the user index before using it
> > to lookup the function pointer.
> >
> > Fixes: a446ae2c6e65 ("drm/i915: add query uAPI")
> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
>
> Okay.
>
> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Indeed, it's all magic to me. Thanks for checking, I'll apply shortly.
-Chris
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