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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-03-22 23:07:01 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-04-01 18:59:07 +0200 |
| commit | 23b29f72eeb2ff6f2176ee74b9abe78aec4cd1f4 (patch) | |
| tree | 1295208200927fc9b09e6fa281bf36f196602f2e /libavformat | |
| parent | f30fe5e8d002e15f07eaacf720c5654097cb62df (diff) | |
| download | ffmpeg-23b29f72eeb2ff6f2176ee74b9abe78aec4cd1f4.tar.gz | |
avformat/aiffdec: Check for previously set channels
Fixes: out of array access (av_channel_layout_copy())
Fixes: 67087/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-4920720268263424
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/aiffdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index eb565054e7..bd5bd2e4bb 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -107,6 +107,8 @@ static int get_aiff_header(AVFormatContext *s, int64_t size, size++; par->codec_type = AVMEDIA_TYPE_AUDIO; channels = avio_rb16(pb); + if (par->ch_layout.nb_channels && par->ch_layout.nb_channels != channels) + return AVERROR_INVALIDDATA; par->ch_layout.nb_channels = channels; num_frames = avio_rb32(pb); par->bits_per_coded_sample = avio_rb16(pb); |