[FFmpeg-devel] [PATCH 2/3] avcodec/speexdec: Check channels > 2
Michael Niedermayer
michael at niedermayer.cc
Fri Sep 30 02:09:26 EEST 2022
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>
---
libavcodec/speexdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/speexdec.c b/libavcodec/speexdec.c
index 9793d939fcb..08c7e77e7d5 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) {
--
2.17.1
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