diff options
| -rw-r--r-- | core/fpdfapi/fpdf_render/fpdf_render_image.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp index 6b842198ed..7ac5210291 100644 --- a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp +++ b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp @@ -762,9 +762,15 @@ FX_BOOL CPDF_ImageRenderer::DrawMaskedImage() { FX_BOOL CPDF_ImageRenderer::StartDIBSource() { if (!(m_Flags & RENDER_FORCE_DOWNSAMPLE) && m_pDIBSource->GetBPP() > 1) { - int image_size = m_pDIBSource->GetBPP() / 8 * m_pDIBSource->GetWidth() * - m_pDIBSource->GetHeight(); - if (image_size > FPDF_HUGE_IMAGE_SIZE && + FX_SAFE_SIZE_T image_size = m_pDIBSource->GetBPP(); + image_size /= 8; + image_size *= m_pDIBSource->GetWidth(); + image_size *= m_pDIBSource->GetHeight(); + if (!image_size.IsValid()) { + return FALSE; + } + + if (image_size.ValueOrDie() > FPDF_HUGE_IMAGE_SIZE && !(m_Flags & RENDER_FORCE_HALFTONE)) { m_Flags |= RENDER_FORCE_DOWNSAMPLE; } |