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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-14 18:38:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-23 14:32:54 +0100 |
| commit | c78b2b138ce222de2f4cecac8fd4361f05ee9428 (patch) | |
| tree | ef2bdd6dd251917415f0aa8423131d7c37d421e6 /libavformat/ads.c | |
| parent | b17ffe8f8f30ba03901bcf7caa6c523e874e8fde (diff) | |
| download | ffmpeg-c78b2b138ce222de2f4cecac8fd4361f05ee9428.tar.gz | |
avformat/ads: Check size
Fixes: signed integer overflow: -2147483616 - 64 cannot be represented in type 'int'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_ADS_fuzzer-6617769344892928
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/ads.c')
| -rw-r--r-- | libavformat/ads.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavformat/ads.c b/libavformat/ads.c index f25141b3c6..544d652829 100644 --- a/libavformat/ads.c +++ b/libavformat/ads.c @@ -34,8 +34,9 @@ static int ads_probe(const AVProbeData *p) static int ads_read_header(AVFormatContext *s) { - int align, codec, size; + int align, codec; AVStream *st; + int64_t size; st = avformat_new_stream(s, NULL); if (!st) @@ -62,7 +63,7 @@ static int ads_read_header(AVFormatContext *s) st->codecpar->block_align = st->codecpar->channels * align; avio_skip(s->pb, 12); size = avio_rl32(s->pb); - if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_PSX) + if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_PSX && size >= 0x40) st->duration = (size - 0x40) / 16 / st->codecpar->channels * 28; avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); |