Fixes: memleak
Fixes: 23415/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5124814510751744
Suggested-by: Marton Balint <cus@passwd.hu>
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0aa2768cb275bda9e9e1331ed95adc7cd686eafe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>