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avcodec/mpegaudio_parser: Initialize poutbuf*

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Possibly fixes: null pointer dereference
Possibly fixes: 9352/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MP3ADUFLOAT_fuzzer-5146068961460224
Fixes: Heap-use-after-free
Fixes: 9453/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MP3ADUFLOAT_fuzzer-5137954375729152

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0f4c3b0b8e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-08-05 14:51:36 +02:00
parent cc0817af0d
commit c0a6febf32
1 changed files with 2 additions and 0 deletions
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2
libavcodec/mpegaudio_parser.c
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@ -99,6 +99,8 @@ static int mpegaudio_parse(AVCodecParserContext *s1,
} else if (codec_id == AV_CODEC_ID_MP3ADU) { } else if (codec_id == AV_CODEC_ID_MP3ADU) {
avpriv_report_missing_feature(avctx, avpriv_report_missing_feature(avctx,
"MP3ADU full parser"); "MP3ADU full parser");
*poutbuf = NULL;
*poutbuf_size = 0;
return 0; /* parsers must not return error codes */ return 0; /* parsers must not return error codes */
} }