diff options
| author | Peter Varga <pvarga@inf.u-szeged.hu> | 2020-04-21 16:57:13 +0200 |
|---|---|---|
| committer | Peter Varga <pvarga@inf.u-szeged.hu> | 2020-04-22 06:27:36 +0000 |
| commit | daeb5ccdfaf9e57b7c2d737837ee6e6ea80cdd5b (patch) | |
| tree | f9f963cfd1b8632e50ec987b28af1ddb8aaa6308 | |
| parent | 6564891efb850d344d852c1d941ed4e9c2a732c1 (diff) | |
| download | qtwebengine-chromium-daeb5ccdfaf9e57b7c2d737837ee6e6ea80cdd5b.tar.gz | |
Disable alternate window station of Windows sandbox
Initialization of Windows sandbox creates an alternate desktop. It also
creates an alternate window station then assigns the browser process to
it for creating the new desktop. Windows QPA has already registered for
WM_CLIPBOARDUPDATE message by AddClipboardFormatListener() when sandbox
initialization starts.
Assigning to a new window station by SetProcessWindowStation() seems to
clear the registration for the messages. Switching back to the original
window station won't bring back the already registered listeners but
new ones can be registered.
Since, Windows QPA can't be accessed to re-register clipboard format
listener, disable alternate window station when creating alternate
desktop for the sandboxed renderer process.
Change-Id: I236186774ebe89a138c17eae2bfb9271a18f3fd8
Fixes: QTBUG-83300
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
| -rw-r--r-- | chromium/services/service_manager/sandbox/win/sandbox_win.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/chromium/services/service_manager/sandbox/win/sandbox_win.cc b/chromium/services/service_manager/sandbox/win/sandbox_win.cc index 0d4e7f5d5c2..bf0fedc417d 100644 --- a/chromium/services/service_manager/sandbox/win/sandbox_win.cc +++ b/chromium/services/service_manager/sandbox/win/sandbox_win.cc @@ -427,7 +427,12 @@ sandbox::ResultCode AddPolicyForSandboxedProcess( return result; policy->SetLockdownDefaultDacl(); +#ifdef TOOLKIT_QT + // Disable alternate window station due to QTBUG-83300 + result = policy->SetAlternateDesktop(false); +#else result = policy->SetAlternateDesktop(true); +#endif if (result != sandbox::SBOX_ALL_OK) { // We ignore the result of setting the alternate desktop, however log // a launch warning. |