[FFmpeg-cvslog] avcodec/extract_extradata: Zero-initialize the padding bytes in all allocated buffers
James Almer
git at videolan.org
Wed Feb 20 18:58:08 EET 2019
ffmpeg | branch: master | James Almer <jamrial at gmail.com> | Fri Mar 9 13:00:55 2018 -0300| [be65995d23c94064df9ab15246c16c757adcd0c4] | committer: Luca Barbato
avcodec/extract_extradata: Zero-initialize the padding bytes in all allocated buffers
Reviewed-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
Signed-off-by: James Almer <jamrial at gmail.com>
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=be65995d23c94064df9ab15246c16c757adcd0c4
---
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 10d108054a..0f1a4e0bcc 100644
--- a/libavcodec/extract_extradata_bsf.c
+++ b/libavcodec/extract_extradata_bsf.c
@@ -114,6 +114,7 @@ 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;
@@ -137,6 +138,8 @@ static int extract_extradata_h2645(AVBSFContext *ctx, AVPacket *pkt,
pkt->buf = filtered_buf;
pkt->data = filtered_buf->data;
pkt->size = filtered_data - filtered_buf->data;
+
+ memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_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;
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