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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-19 23:28:53 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-03-27 11:58:54 +0200 |
| commit | 2e069f6b69475683207ea05deb269f9c532633bb (patch) | |
| tree | 0ac4365e05b158a49902caef48d41369b22dd88b | |
| parent | 723065a3466c7a05ef9c7cecda501115e789d261 (diff) | |
| download | ffmpeg-2e069f6b69475683207ea05deb269f9c532633bb.tar.gz | |
avformat/alp: Check num_channels
Fixes: division by 0
Fixes: 45615/clusterfuzz-testcase-minimized-ffmpeg_dem_ALP_fuzzer-582660348405350
Fixes: 45625/clusterfuzz-testcase-minimized-ffmpeg_dem_ALP_fuzzer-4821437943250944
Fixes: 45839/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-5857286998851584.fuzz
Fixes: 45844/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6552705772945408
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/alp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/alp.c b/libavformat/alp.c index f2428a9e3b..40e4890a38 100644 --- a/libavformat/alp.c +++ b/libavformat/alp.c @@ -122,7 +122,7 @@ static int alp_read_header(AVFormatContext *s) par->format = AV_SAMPLE_FMT_S16; par->sample_rate = hdr->sample_rate; - if (hdr->num_channels > 2) + if (hdr->num_channels > 2 || hdr->num_channels == 0) return AVERROR_INVALIDDATA; av_channel_layout_default(&par->ch_layout, hdr->num_channels); |