atrac1: validate number of channels

bff5b2c1 · Justin Ruggles · 9a35ff38 · bff5b2c1
Commit bff5b2c1 authored Oct 14, 2011 by Justin Ruggles
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atrac1.c libavcodec/atrac1.c +5 -0

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--- a/libavcodec/atrac1.c
+++ b/libavcodec/atrac1.c
@@ -332,6 +332,11 @@ static av_cold int atrac1_decode_init(AVCodecContext *avctx)

    avctx->sample_fmt = AV_SAMPLE_FMT_FLT;

+    if (avctx->channels < 1 || avctx->channels > AT1_MAX_CHANNELS) {
+        av_log(avctx, AV_LOG_ERROR, "Unsupported number of channels: %d\n",
+               avctx->channels);
+        return AVERROR(EINVAL);
+    }
    q->channels = avctx->channels;

    /* Init the mdct transforms */