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avformat/ffmetadec: finalize AVBPrint on errors

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Fixes: memleak
Fixes: 26450/clusterfuzz-testcase-minimized-ffmpeg_dem_FFMETADATA_fuzzer-6249850443923456

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 2020-10-20 22:56:13 +02:00
parent 2beb7f43f6
commit a927128617
1 changed files with 6 additions and 2 deletions
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8
libavformat/ffmetadec.c
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@ -185,7 +185,7 @@ static int read_header(AVFormatContext *s)
AVStream *st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
goto nomem;
st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
st->codecpar->codec_id = AV_CODEC_ID_FFMETADATA;
@ -195,7 +195,7 @@ static int read_header(AVFormatContext *s)
AVChapter *ch = read_chapter(s);
if (!ch)
return AVERROR(ENOMEM);
goto nomem;
m = &ch->metadata;
} else
@ -211,6 +211,10 @@ static int read_header(AVFormatContext *s)
AV_TIME_BASE_Q);
return 0;
nomem:
av_bprint_finalize(&bp, NULL);
return AVERROR(ENOMEM);
}
static int read_packet(AVFormatContext *s, AVPacket *pkt)