x11-libs/libva-intel-media-driver/files/0005-Decode-Add-robustness-check-for-superresScaleDenomin.patch

From 87473995b4628e7dde4715db7cd86d1cb559972f Mon Sep 17 00:00:00 2001
From: ArseniyObolenskiy <arseniy.obolenskiy@intel.com>
Date: Fri, 9 Oct 2020 17:07:39 +0800
Subject: [PATCH] Add robustness check for superresScaleDenominator in
 ParsePicParams

[Decode] Add robustness check for superresScaleDenominator in ParsePicParams

Change-Id: Iaf9f08694149a606c3e4530ce8a1ba77a86478a7
---
 .../linux/gen12/codec/ddi/media_ddi_decode_av1_g12.cpp         | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/media_driver/linux/gen12/codec/ddi/media_ddi_decode_av1_g12.cpp b/media_driver/linux/gen12/codec/ddi/media_ddi_decode_av1_g12.cpp
index 8244644a2e26..4d169954857c 100644
--- a/media_driver/linux/gen12/codec/ddi/media_ddi_decode_av1_g12.cpp
+++ b/media_driver/linux/gen12/codec/ddi/media_ddi_decode_av1_g12.cpp
@@ -396,6 +396,9 @@ VAStatus DdiDecodeAV1::ParsePicParams(
     // calculate down scaled width
     if (picAV1Params->m_picInfoFlags.m_fields.m_useSuperres &&
         (picAV1Params->m_superresScaleDenominator != av1ScaleNumerator)) {
+        if (picAV1Params->m_superresScaleDenominator == 0) {
+            return VA_STATUS_ERROR_INVALID_PARAMETER;
+        }
         uint32_t dsWidth = ((picParam->frame_width_minus1 + 1 ) *
                             av1ScaleNumerator + picAV1Params->m_superresScaleDenominator / 2) /
             picAV1Params->m_superresScaleDenominator;
-- 
2.25.1