pdf/control.cc - Issue 519873002: Avoid OOB memcpy in chrome_pdf::CopyImage.

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Unified Diff: pdf/control.cc

Issue 519873002: Avoid OOB memcpy in chrome_pdf::CopyImage. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Rename function for clarity. Created 6 years, 3 months ago

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Index: pdf/control.cc

diff --git a/pdf/control.cc b/pdf/control.cc

index 12bb7ed1689f872611f45124b139c33563d40891..ed911b6b95a521ae1793b94300dffb97a84054ca 100644

--- a/pdf/control.cc

+++ b/pdf/control.cc

@@ -53,7 +53,7 @@ void Control::PaintMultipleRects(pp::ImageData* image_data,

return;

pp::Rect draw_rc = pp::Rect(image_data->size()).Intersect(rect());

- pp::Rect ctrl_rc = pp::Rect(rect().point() - draw_rc.point(), draw_rc.size());

+ pp::Rect ctrl_rc = pp::Rect(draw_rc.point() - rect().point(), draw_rc.size());

CopyImage(*image_data, draw_rc, &buffer, ctrl_rc, false);

// Temporary move control to origin (0,0) and draw it into temp buffer.

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