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Code Issues Releases Activity

avformat/utils: free existing extradata before trying to allocate a new one

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This prevents leaks in the rare cases the function is called when extradata
already exists.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2018-03-06 01:19:13 -03:00
parent b19e11a4dc
commit 0ca33b1d4e
1 changed files with 1 additions and 0 deletions
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libavformat/utils.c
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@ -3245,6 +3245,7 @@ int ff_alloc_extradata(AVCodecParameters *par, int size)
{
int ret;
av_freep(&par->extradata);
if (size < 0 || size >= INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
par->extradata = NULL;
par->extradata_size = 0;