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avformat/iamf_parse: Check for 0 samples 

Fixes: division by zero
Fixes: 70561/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-6199435013455872
Fixes: 70565/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-5783790316748800

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-31 20:06:49 +02:00
parent 8280ec7a32
commit ed96ac87a9
No known key found for this signature in database
GPG Key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
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libavformat/iamf_parse.c
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@ -252,7 +252,7 @@ static int codec_config_obu(void *s, IAMFContext *c, AVIOContext *pb, int len)
if (ret < 0)
goto fail;
if ((codec_config->nb_samples > INT_MAX) ||
if ((codec_config->nb_samples > INT_MAX) || codec_config->nb_samples <= 0 ||
(-codec_config->audio_roll_distance > INT_MAX / codec_config->nb_samples)) {
ret = AVERROR_INVALIDDATA;
goto fail;