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fix: RenderFrameHost nullptr dereference (#45487)

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* fix: add nullptr tests before using render_frame_

* refactor: extract-method HasRenderFrame()
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Charles Kerr 2025-02-06 22:02:57 -06:00 • committed by GitHub
parent 517935cd55
commit 67f5ac5bbc
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2 changed files with 11 additions and 5 deletions
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10
shell/browser/api/electron_api_web_frame_main.h
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@ -101,8 +101,14 @@ class WebFrameMain final : public gin::Wrappable<WebFrameMain>,
void TeardownMojoConnection();
void OnRendererConnectionError();
// WebFrameMain can outlive its RenderFrameHost pointer so we need to check
// whether its been disposed of prior to accessing it.
[[nodiscard]] constexpr bool HasRenderFrame() const {
return !render_frame_disposed_ && render_frame_ != nullptr;
}
// Throws a JS error if HasRenderFrame() is false.
// WebFrameMain can outlive its RenderFrameHost pointer,
// so we need to check whether its been disposed of
// prior to accessing it.
bool CheckRenderFrame() const;
v8::Local<v8::Promise> ExecuteJavaScript(gin::Arguments* args,