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| author | dsinclair <dsinclair@chromium.org> | 2016-09-07 13:54:01 -0700 |
|---|---|---|
| committer | Commit bot <commit-bot@chromium.org> | 2016-09-07 13:54:01 -0700 |
| commit | f56d93f8ea1c2145401e99e61cefdbfcb7341229 (patch) | |
| tree | 6d80ab38999c716870132a9bbe5874fd879465a9 | |
| parent | b1f5545e34375a5947004ee92cc808b3df9d4a5b (diff) | |
| download | pdfium-f56d93f8ea1c2145401e99e61cefdbfcb7341229.tar.xz | |
Verify image dimentions before using
Verify the provided image size is within bounds before loading.
BUG=chromium:639160
Review-Url: https://codereview.chromium.org/2323473002
| -rw-r--r-- | core/fpdfapi/fpdf_render/fpdf_render_image.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp index e7e9682322..e23cab3546 100644 --- a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp +++ b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp @@ -366,6 +366,9 @@ CPDF_ImageRenderer::~CPDF_ImageRenderer() { FX_BOOL CPDF_ImageRenderer::StartLoadDIBSource() { CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect(); FX_RECT image_rect = image_rect_f.GetOuterRect(); + if (!image_rect.Valid()) + return FALSE; + int dest_width = image_rect.Width(); int dest_height = image_rect.Height(); if (m_ImageMatrix.a < 0) { |