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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-09 09:53:26 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-11 20:18:48 +0100 |
| commit | a0b57ca1b89af7f52c8f92dfe5a20195ddf3d54b (patch) | |
| tree | 26d9d13944f12676a1038e587b9bdf4a99e6f199 | |
| parent | 73254b0558f1053f046b56c423f5d841ba604db0 (diff) | |
| download | ffmpeg-a0b57ca1b89af7f52c8f92dfe5a20195ddf3d54b.tar.gz | |
avcodec/aptx: Check the number of channels
Fixes: store to null pointer of type 'uint32_t' (aka 'unsigned int')
Fixes: 18021/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APTX_HD_fuzzer-5761738313564160
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 98a257c3235bdc18151534134148845728418248)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aptx.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/aptx.c b/libavcodec/aptx.c index e3fb064a6d..a2620a9212 100644 --- a/libavcodec/aptx.c +++ b/libavcodec/aptx.c @@ -989,6 +989,9 @@ static av_cold int aptx_init(AVCodecContext *avctx) AptXContext *s = avctx->priv_data; int chan, subband; + if (avctx->channels != 2) + return AVERROR_INVALIDDATA; + s->hd = avctx->codec->id == AV_CODEC_ID_APTX_HD; s->block_size = s->hd ? 6 : 4; |