[libav-devel] [PATCH] extract_extradata: zero initalize the padding bytes in all allocated buffers

[James Almer]

Signed-off-by: James Almer <jamr...@gmail.com>
---
 libavcodec/extract_extradata_bsf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/extract_extradata_bsf.c 
b/libavcodec/extract_extradata_bsf.c
index 100c60d06..8d341cefc 100644
--- a/libavcodec/extract_extradata_bsf.c
+++ b/libavcodec/extract_extradata_bsf.c
@@ -105,6 +105,8 @@ static int extract_extradata_h2645(AVBSFContext *ctx, 
AVPacket *pkt,
                 ret = AVERROR(ENOMEM);
                 goto fail;
             }
+            memset(filtered_buf->data + pkt->size, 0, 
AV_INPUT_BUFFER_PADDING_SIZE);
+
             filtered_data = filtered_buf->data;
         }
 
@@ -114,6 +116,7 @@ static int extract_extradata_h2645(AVBSFContext *ctx, 
AVPacket *pkt,
             ret = AVERROR(ENOMEM);
             goto fail;
         }
+        memset(extradata + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
         *data = extradata;
         *size = extradata_size;
@@ -171,6 +174,7 @@ static int extract_extradata_vc1(AVBSFContext *ctx, 
AVPacket *pkt,
             return AVERROR(ENOMEM);
 
         memcpy(*data, pkt->data, extradata_size);
+        memset(*data + extradata_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
         *size = extradata_size;
 
         if (s->remove) {
@@ -202,6 +206,7 @@ static int extract_extradata_mpeg124(AVBSFContext *ctx, 
AVPacket *pkt,
                     return AVERROR(ENOMEM);
 
                 memcpy(*data, pkt->data, *size);
+                memset(*data + *size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 
                 if (s->remove) {
                     pkt->data += *size;
-- 
2.16.2

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