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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-06 23:42:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-11 21:23:48 +0200 |
| commit | 71f0cfd327d6cf13c96ec424fc20dd58eca67cf3 (patch) | |
| tree | a32550afd3225363af17fee9dcd92e6c0df05d7d | |
| parent | 6d96e983f15c496c7df6953f891d588e9254a421 (diff) | |
| download | ffmpeg-71f0cfd327d6cf13c96ec424fc20dd58eca67cf3.tar.gz | |
avformat/nuv: Check channels
Fixes: signed integer overflow: -3468545475927866368 * 4 cannot be represented in type 'long'
Fixes: 28879/clusterfuzz-testcase-minimized-ffmpeg_dem_NUV_fuzzer-6303367307591680
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 fc45d924d7ff6be80e90870540ba35efc290e428)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/nuv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/nuv.c b/libavformat/nuv.c index 9bdea4ab55..2be22f9f51 100644 --- a/libavformat/nuv.c +++ b/libavformat/nuv.c @@ -121,6 +121,10 @@ static int get_codec_data(AVFormatContext *s, AVIOContext *pb, AVStream *vst, ast->codecpar->bits_per_coded_sample = avio_rl32(pb); ast->codecpar->channels = avio_rl32(pb); ast->codecpar->channel_layout = 0; + if (ast->codecpar->channels <= 0) { + av_log(s, AV_LOG_ERROR, "Invalid channels %d\n", ast->codecpar->channels); + return AVERROR_INVALIDDATA; + } id = ff_wav_codec_get_id(ast->codecpar->codec_tag, ast->codecpar->bits_per_coded_sample); |