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avformat/aaxdec: Check for empty segments

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Fixes: Timeout
Fixes: 48154/clusterfuzz-testcase-minimized-ffmpeg_dem_AAX_fuzzer-5149094353436672

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-06-27 10:29:25 +02:00
parent 78b95530f0
commit db31b3ea86
1 changed files with 2 additions and 0 deletions
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2
libavformat/aaxdec.c
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@ -250,6 +250,8 @@ static int aax_read_header(AVFormatContext *s)
start = avio_rb32(pb); start = avio_rb32(pb);
size = avio_rb32(pb); size = avio_rb32(pb);
if (!size)
return AVERROR_INVALIDDATA;
a->segments[r].start = start + a->data_offset; a->segments[r].start = start + a->data_offset;
a->segments[r].end = a->segments[r].start + size; a->segments[r].end = a->segments[r].start + size;
if (r && if (r &&