diff options
| -rw-r--r-- | core/fpdfapi/font/cpdf_cidfont.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/core/fpdfapi/font/cpdf_cidfont.cpp b/core/fpdfapi/font/cpdf_cidfont.cpp index 7d14a9ea0a..4c378f7598 100644 --- a/core/fpdfapi/font/cpdf_cidfont.cpp +++ b/core/fpdfapi/font/cpdf_cidfont.cpp @@ -7,6 +7,7 @@ #include "core/fpdfapi/font/cpdf_cidfont.h" #include <algorithm> +#include <limits> #include <vector> #include "core/fpdfapi/cmaps/cmap_int.h" @@ -781,8 +782,8 @@ void CPDF_CIDFont::LoadMetricsArray(CPDF_Array* pArray, int nElements) { int width_status = 0; int iCurElement = 0; - int first_code = 0; - int last_code = 0; + uint32_t first_code = 0; + uint32_t last_code = 0; for (size_t i = 0; i < pArray->GetCount(); i++) { CPDF_Object* pObj = pArray->GetDirectObjectAt(i); if (!pObj) @@ -791,6 +792,11 @@ void CPDF_CIDFont::LoadMetricsArray(CPDF_Array* pArray, if (CPDF_Array* pObjArray = pObj->AsArray()) { if (width_status != 1) return; + if (first_code > + std::numeric_limits<uint32_t>::max() - pObjArray->GetCount()) { + width_status = 0; + continue; + } for (size_t j = 0; j < pObjArray->GetCount(); j += nElements) { result->push_back(first_code); |