diff options
| author | Michael Niedermayer | 2019-10-23 22:32:47 +0200 |
|---|---|---|
| committer | Michael Niedermayer | 2019-12-31 19:51:56 +0100 |
| commit | 556bb822a00cb22a4c4848e52069f16000764faf (patch) | |
| tree | 6a41e03d54e146b7403d3026aa72526f69194144 | |
| parent | d32058276c61ca38860e268342476b684ba81d72 (diff) | |
avcodec/wmavoice: Check sample_rate
Fixes: left shift of 538976288 by 8 places cannot be represented in type 'int'
Fixes: 18376/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAVOICE_fuzzer-5741645391200256
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 55c97a763783540ee48a326a3e82fbdea42f8280)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wmavoice.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/wmavoice.c b/libavcodec/wmavoice.c index 68bb65986e..4c147fe04f 100644 --- a/libavcodec/wmavoice.c +++ b/libavcodec/wmavoice.c @@ -433,6 +433,9 @@ static av_cold int wmavoice_decode_init(AVCodecContext *ctx) return AVERROR_INVALIDDATA; } + if (ctx->sample_rate >= INT_MAX / (256 * 37)) + return AVERROR_INVALIDDATA; + s->min_pitch_val = ((ctx->sample_rate << 8) / 400 + 50) >> 8; s->max_pitch_val = ((ctx->sample_rate << 8) * 37 / 2000 + 50) >> 8; pitch_range = s->max_pitch_val - s->min_pitch_val; |