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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-19 10:53:31 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-09 13:53:29 +0200 |
| commit | f608e7801634f0ac9b661a22033be06ab5f5180b (patch) | |
| tree | ab97340df6e02ce7b23f4da86462a2d86578bd46 | |
| parent | b7b6f4c557c7306c1aab56a3fb6632aa7b88de8d (diff) | |
| download | ffmpeg-f608e7801634f0ac9b661a22033be06ab5f5180b.tar.gz | |
avformat/nistspheredec: Check bps
Fixes: left shift of 1111111190 by 3 places cannot be represented in type 'int'
Fixes: 26437/clusterfuzz-testcase-minimized-ffmpeg_dem_NISTSPHERE_fuzzer-4886896091856896
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 7c144b363e67bef7651108c88687b38155172c1f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/nistspheredec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/nistspheredec.c b/libavformat/nistspheredec.c index 55f22ebcf4..dbf031f3e3 100644 --- a/libavformat/nistspheredec.c +++ b/libavformat/nistspheredec.c @@ -109,6 +109,8 @@ static int nist_read_header(AVFormatContext *s) sscanf(buffer, "%*s %*s %"SCNd64, &st->duration); } else if (!memcmp(buffer, "sample_n_bytes", 14)) { sscanf(buffer, "%*s %*s %d", &bps); + if (bps > INT_MAX/8U) + return AVERROR_INVALIDDATA; } else if (!memcmp(buffer, "sample_rate", 11)) { sscanf(buffer, "%*s %*s %d", &st->codecpar->sample_rate); } else if (!memcmp(buffer, "sample_sig_bits", 15)) { |