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[FFmpeg-devel,2/3] avcodec/speexdec: Check channels > 2

Message ID 20220929230927.28439-2-michael@niedermayer.cc
State Accepted
Commit 77164b2344eb67d61f973ebbbc8e0b88aaae027b
Headers show
Series [FFmpeg-devel,1/3] avformat/vividas: Check packet size | expand

Commit Message

Michael Niedermayer Sept. 29, 2022, 11:09 p.m. UTC
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@niedermayer.cc>
---
 libavcodec/speexdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

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) {