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avcodec/cllc: Check bitstream end before decoding pixels
Fixes timeout Fixes: 1802/clusterfuzz-testcase-minimized-5008293510512640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -429,6 +429,9 @@ static int cllc_decode_frame(AVCodecContext *avctx, void *data,
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coding_type = (AV_RL32(src) >> 8) & 0xFF;
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av_log(avctx, AV_LOG_DEBUG, "Frame coding type: %d\n", coding_type);
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if(get_bits_left(&gb) < avctx->height * avctx->width)
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return AVERROR_INVALIDDATA;
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switch (coding_type) {
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case 0:
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avctx->pix_fmt = AV_PIX_FMT_YUV422P;
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