From abee0a1c60612e8638640a8a3738fffb65e16dbf Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 28 Nov 2015 20:08:46 +0100
Subject: [PATCH] avcodec/utils: Clear dimensions in ff_get_buffer() on failure

Fixes out of array access
Fixes: 482d8f2fd17c9f532b586458a33f267c/asan_heap-oob_4a52b6_7417_1d08d477736d66cdadd833d146bb8bae.mov

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/utils.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index e018e445f4..d00dfae4ac 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -888,8 +888,10 @@ end:
 int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
 {
     int ret = get_buffer_internal(avctx, frame, flags);
-    if (ret < 0)
+    if (ret < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        frame->width = frame->height = 0;
+    }
     return ret;
 }