[FFmpeg-cvslog] avcodec/speexdec: Check channels > 2
Michael Niedermayer
git at videolan.org
Wed Oct 5 00:56:39 EEST 2022
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Thu Sep 29 23:16:51 2022 +0200| [77164b2344eb67d61f973ebbbc8e0b88aaae027b] | committer: Michael Niedermayer
avcodec/speexdec: Check channels > 2
More than 2 channels seems unsupported, the code seems to just output empty extra channels
Fixes: Timeout
Fixes: 51569/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SPEEX_fuzzer-5511509165342720
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=77164b2344eb67d61f973ebbbc8e0b88aaae027b
---
libavcodec/speexdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/speexdec.c b/libavcodec/speexdec.c
index 9793d939fc..08c7e77e7d 100644
--- a/libavcodec/speexdec.c
+++ b/libavcodec/speexdec.c
@@ -1452,7 +1452,7 @@ static av_cold int speex_decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
s->nb_channels = avctx->ch_layout.nb_channels;
- if (s->nb_channels <= 0)
+ if (s->nb_channels <= 0 || s->nb_channels > 2)
return AVERROR_INVALIDDATA;
switch (s->rate) {
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