mirror of https://git.ffmpeg.org/ffmpeg.git
wavpack: check if number of samples is not too big
Wavpack format documentation mentions that 131072 is max number of samples. This fixes huge memory allocations in sample from ticket #1889. Signed-off-by: Paul B Mahol <onemda@gmail.com>
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@ -46,6 +46,8 @@
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#define WV_FLT_ZERO_SENT 0x08
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#define WV_FLT_ZERO_SIGN 0x10
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#define WV_MAX_SAMPLES 131072
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enum WP_ID_Flags {
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WP_IDF_MASK = 0x1F,
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WP_IDF_IGNORE = 0x20,
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@ -1190,7 +1192,7 @@ static int wavpack_decode_frame(AVCodecContext *avctx, void *data,
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frame_flags = AV_RL32(buf + 4);
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}
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}
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if (s->samples <= 0) {
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if (s->samples <= 0 || s->samples > WV_MAX_SAMPLES) {
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av_log(avctx, AV_LOG_ERROR, "Invalid number of samples: %d\n",
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s->samples);
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return AVERROR(EINVAL);
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