pdf/instance.cc - Issue 427583003: Fix UAF in chrome_pdf::Instance::GetURL()

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Unified Diff: pdf/instance.cc

Issue 427583003: Fix UAF in chrome_pdf::Instance::GetURL() (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: better comment Created 6 years, 4 months ago

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Index: pdf/instance.cc

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

index 0feeff4b8b9709f1ec023c7f72d81f600e607729..a5c529e7c848cbbb7d26faf4611537ddd0310b18 100644

--- a/pdf/instance.cc

+++ b/pdf/instance.cc

@@ -307,6 +307,9 @@ Instance::Instance(PP_Instance instance)

}

Instance::~Instance() {

+ // The engine may try to access this instance during its destruction.

+ // Make sure this happens early while the instance is still intact.

+ engine_.reset();

RemovePerInstanceObject(kPPPPdfInterface, this);

}

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