Re: [PATCH 2/2] drm/radeon: Fix UBSAN array-index-out-of-bounds for Radeon HD 5430

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On Thu, Oct 5, 2023 at 12:42 AM Mario Limonciello
<mario.limonciello@xxxxxxx> wrote:
>
> For pptable structs that use flexible array sizes, use flexible arrays.
>
> Suggested-by: Felix Held <felix.held@xxxxxxx>
> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2894
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>

Series is:
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>

> ---
>  drivers/gpu/drm/radeon/pptable.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/pptable.h b/drivers/gpu/drm/radeon/pptable.h
> index 4c2eec49dadc..94947229888b 100644
> --- a/drivers/gpu/drm/radeon/pptable.h
> +++ b/drivers/gpu/drm/radeon/pptable.h
> @@ -74,7 +74,7 @@ typedef struct _ATOM_PPLIB_THERMALCONTROLLER
>  typedef struct _ATOM_PPLIB_STATE
>  {
>      UCHAR ucNonClockStateIndex;
> -    UCHAR ucClockStateIndices[1]; // variable-sized
> +    UCHAR ucClockStateIndices[]; // variable-sized
>  } ATOM_PPLIB_STATE;
>
>
> --
> 2.34.1
>




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