From 59fe00912a48aa877b7538a8620e6ecedbdba88c Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 29 Sep 2022 23:16:51 +0200 Subject: [PATCH] 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 (cherry picked from commit 77164b2344eb67d61f973ebbbc8e0b88aaae027b) Signed-off-by: Michael Niedermayer --- libavcodec/speexdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/speexdec.c b/libavcodec/speexdec.c index ee95417deb..a7adcbfba4 100644 --- a/libavcodec/speexdec.c +++ b/libavcodec/speexdec.c @@ -1451,7 +1451,7 @@ static av_cold int speex_decode_init(AVCodecContext *avctx) return AVERROR_INVALIDDATA; s->nb_channels = avctx->channels; - if (s->nb_channels <= 0) + if (s->nb_channels <= 0 || s->nb_channels > 2) return AVERROR_INVALIDDATA; switch (s->rate) {