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-rw-r--r--libavformat/matroskadec.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index f798342443..764dbf82b9 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -734,9 +734,11 @@ static int ebml_read_ascii(AVIOContext *pb, int size, char **str)
static int ebml_read_binary(AVIOContext *pb, int length, EbmlBin *bin)
{
av_free(bin->data);
- if (!(bin->data = av_malloc(length)))
+ if (!(bin->data = av_malloc(length + FF_INPUT_BUFFER_PADDING_SIZE)))
return AVERROR(ENOMEM);
+ memset(bin->data + length, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+
bin->size = length;
bin->pos = avio_tell(pb);
if (avio_read(pb, bin->data, length) != length) {