fix fuzz issues 18744, 18746 and 18747 by clearing info of buffered video frames when decreasing DPB buffers.

xiaotiansf committed 7 years ago

Commit d0345421 parent 392f0bc1 file · +2 −0Browse files

Showing the changes to codec/decoder/core/src/decoder.cpp (1 of 1 file). Show all

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codec/decoder/core/src/decoder.cpp+2−0

@@ -192,6 +192,8 @@ static int32_t DecreasePicBuff (PWelsDecoderContext pCtx, PPicBuff* ppPicBuf, co · 191 unmodified lines
192	return ERR_INFO_OUT_OF_MEMORY;	192	return ERR_INFO_OUT_OF_MEMORY;
193	}	193	}
194		194
		195	ResetReorderingPictureBuffers (pCtx->pPictReoderingStatus, pCtx->pPictInfoList, false);
		196
195	int32_t iPrevPicIdx = -1;	197	int32_t iPrevPicIdx = -1;
196	for (iPrevPicIdx = 0; iPrevPicIdx < kiOldSize; ++iPrevPicIdx) {	198	for (iPrevPicIdx = 0; iPrevPicIdx < kiOldSize; ++iPrevPicIdx) {
197	if (pCtx->pLastDecPicInfo->pPreviousDecodedPictureInDpb == pPicOldBuf->ppPic[iPrevPicIdx]) {	199	if (pCtx->pLastDecPicInfo->pPreviousDecodedPictureInDpb == pPicOldBuf->ppPic[iPrevPicIdx]) {