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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-06-17 01:08:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-06-19 12:52:20 +0200 |
| commit | c69e6cccd7e14fc6ee9df179f19e9de2cecba3d8 (patch) | |
| tree | 66763dec84cf2da96823a90e34dd7bcfb16e0167 | |
| parent | 97ecfb5a193c43eef2e47b3e45afd3fc629c107d (diff) | |
| download | ffmpeg-c69e6cccd7e14fc6ee9df179f19e9de2cecba3d8.tar.gz | |
avformat/iamf_parse: consider nb_substreams when accessing substreams array
Fixes: out of array access
Fixes: 68584/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6256656668229632
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>
| -rw-r--r-- | libavformat/iamf_parse.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/iamf_parse.c b/libavformat/iamf_parse.c index 312090b247..5c2ff6862a 100644 --- a/libavformat/iamf_parse.c +++ b/libavformat/iamf_parse.c @@ -355,6 +355,9 @@ static int scalable_channel_layout_config(void *s, AVIOContext *pb, substream_count = avio_r8(pb); coupled_substream_count = avio_r8(pb); + if (substream_count + k > audio_element->nb_substreams) + return AVERROR_INVALIDDATA; + audio_element->layers[i].substream_count = substream_count; audio_element->layers[i].coupled_substream_count = coupled_substream_count; if (output_gain_is_present_flag) { |