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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-23 17:28:29 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-06 13:54:16 +0200 |
| commit | 99c8690870999fbafefb2ccb3af31322d9e8eb03 (patch) | |
| tree | 1b7e041dd51fa58559f1e0cbb31d9c44eca15018 | |
| parent | 9410be6ddd7d26a85e5cae95819801aff7b4b9ed (diff) | |
| download | ffmpeg-99c8690870999fbafefb2ccb3af31322d9e8eb03.tar.gz | |
avformat/aiffdec: Check for size overflow in header parsing
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-6723467048255488
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 bae2e1977744f42d56b85193d4910811de829714)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/aiffdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index e660531801..833ab30643 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -101,6 +101,9 @@ static int get_aiff_header(AVFormatContext *s, int size, int sample_rate; unsigned int num_frames; + if (size == INT_MAX) + return AVERROR_INVALIDDATA; + if (size & 1) size++; par->codec_type = AVMEDIA_TYPE_AUDIO; |