[FFmpeg-devel] [PATCH 1/2] avcodec/liblc3dec: sanitize channel count in avctx

[James Almer]

Should prevent out of array accesses.

Signed-off-by: James Almer <jamrial at gmail.com>
---
 libavcodec/liblc3dec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/liblc3dec.c b/libavcodec/liblc3dec.c
index c0a31bc91f..52364859d4 100644
--- a/libavcodec/liblc3dec.c
+++ b/libavcodec/liblc3dec.c
@@ -46,6 +46,8 @@ static av_cold int liblc3_decode_init(AVCodecContext *avctx)
 
     if (avctx->extradata_size < 10)
         return AVERROR_INVALIDDATA;
+    if (channels < 0 || channels > DECODER_MAX_CHANNELS)
+        return AVERROR_INVALIDDATA;
 
     liblc3->frame_us = AV_RL16(avctx->extradata + 0) * 10;
     liblc3->srate_hz = avctx->sample_rate;
-- 
2.44.0