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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-27 12:31:39 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-09-30 22:44:43 +0200 |
| commit | 75fefb1fb7ac8b423e08a8dca19b19884a325ebf (patch) | |
| tree | 80b6461c223cf13dee4252a505ec0d58e7eff1ca | |
| parent | 675f62a202be7cfe9576b48679b8e6bc1183e84e (diff) | |
| download | ffmpeg-75fefb1fb7ac8b423e08a8dca19b19884a325ebf.tar.gz | |
avcodec/utils: Check sample_rate before opening the decoder
Fixes: signed integer overflow: 2 * -1306460384 cannot be represented in type 'int'
Fixes: 17685/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_fuzzer-5747390337777664
Fixes: 17688/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5739287210885120
Fixes: 17699/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INTERPLAY_ACM_fuzzer-5678394531905536
Fixes: 17738/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5763415733174272
Fixes: 17746/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINKAUDIO_RDFT_fuzzer-5703008159006720
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-- | libavcodec/utils.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index a19e0086cb..6cc770b1ea 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -689,6 +689,11 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code ret = AVERROR(EINVAL); goto free_and_end; } + if (avctx->sample_rate < 0) { + av_log(avctx, AV_LOG_ERROR, "Invalid sample rate: %d\n", avctx->sample_rate); + ret = AVERROR(EINVAL); + goto free_and_end; + } avctx->codec = codec; if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && |