From d2f929357d595dddb2132018a39d6779e7294dc2 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 21 Oct 2017 18:04:44 +0200
Subject: [PATCH] avcodec/h264dec: Fix potential array overread

add padding before scantable arrays

See: 522d850e68ec4b77d3477b3c8f55b1ba00a9d69a

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 380b48fb9fdc7b0c40d67e026f9b3accb12794eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/h264.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 2c975934a2..bf9f4e12cb 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -521,6 +521,7 @@ typedef struct H264Context {
     uint8_t *direct_table;
     uint8_t direct_cache[5 * 8];
 
+    uint8_t scan_padding[16];
     uint8_t zigzag_scan[16];
     uint8_t zigzag_scan8x8[64];
     uint8_t zigzag_scan8x8_cavlc[64];