Fix oss-fuzzer 14035. Reset all B-frame's reference's references when…

… IDR is lost to prevent temporal prediction from trying to access lost references.

codec/decoder/core/src/manage_dec_ref.cpp

@@ -126,6 +126,14 @@ static int32_t WelsCheckAndRecoverForFutureDecoding (PWelsDecoderContext pCtx) {
  pRef->bIsComplete = false; // Set complete flag to false for lost IDR ref picture
  pRef->iSpsId = pCtx->pSps->iSpsId;
  pRef->iPpsId = pCtx->pPps->iPpsId;
+ if (pCtx->eSliceType == B_SLICE) {
+ //reset reference's references when IDR is lost
+ for (int32_t list = LIST_0; list < LIST_A; ++list) {
+ for (int32_t i = 0; i < 17; ++i) {
+ pRef->pRefPic[list][i] = NULL;
+ }
+ }
+ }
  pCtx->iErrorCode |= dsDataErrorConcealed;
  bool bCopyPrevious = ((ERROR_CON_FRAME_COPY_CROSS_IDR == pCtx->pParam->eEcActiveIdc)
  || (ERROR_CON_SLICE_COPY_CROSS_IDR == pCtx->pParam->eEcActiveIdc)