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avcodec/magicyuv: Free previous VLC table 

Fixes: memleak
Fixes: 26788/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MAGICYUV_fuzzer-5184116808744960

Regression since: 1bf30a1beb

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-11-02 01:21:25 +01:00
parent 2610acb49a
commit bbba41704b
1 changed files with 1 additions and 0 deletions
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libavcodec/magicyuv.c
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@ -89,6 +89,7 @@ static int huff_build(HuffEntry he[], uint16_t codes_count[33],
he[i].code = codes_count[he[i].len];
codes_count[he[i].len]++;
}
ff_free_vlc(vlc);
return init_vlc(vlc, FFMIN(max, 12), nb_elems,
&he[0].len, sizeof(he[0]), sizeof(he[0].len),
&he[0].code, sizeof(he[0]), sizeof(he[0].code), 0);