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-rw-r--r--libavformat/smacker.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index fcca5c6e3a..7eed34d516 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -210,7 +210,8 @@ static int smacker_read_header(AVFormatContext *s)
/* load trees to extradata, they will be unpacked by decoder */
- st->codec->extradata = av_malloc(smk->treesize + 16);
+ st->codec->extradata = av_mallocz(smk->treesize + 16 +
+ FF_INPUT_BUFFER_PADDING_SIZE);
st->codec->extradata_size = smk->treesize + 16;
if(!st->codec->extradata){
av_log(s, AV_LOG_ERROR, "Cannot allocate %i bytes of extradata\n", smk->treesize + 16);