ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun 
Jun 14 19:45:05 2020 +0200| [0aa2768cb275bda9e9e1331ed95adc7cd686eafe] | 
committer: Michael Niedermayer

avformat/mxfdec: free duplicated utf16 strings

Fixes: memleak
Fixes: 
23415/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5124814510751744

Suggested-by: Marton Balint <c...@passwd.hu>
Found-by: continuous fuzzing process 
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0aa2768cb275bda9e9e1331ed95adc7cd686eafe
---

 libavformat/mxfdec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index a60bdfeade..90546d42b3 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -867,6 +867,7 @@ static inline int mxf_read_utf16_string(AVIOContext *pb, 
int size, char** str, i
         return AVERROR(EINVAL);
 
     buf_size = size + size / 2 + 1;
+    av_free(*str);
     *str = av_malloc(buf_size);
     if (!*str)
         return AVERROR(ENOMEM);

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