Set geometry property in QXcbWindow after checking minimum size

QXcbWindow::create() bound the window's size to windowMinimumSize(),
after its size had been inherited from parent().
QPlatformWindow::setGeometry() was called before that sanity check.

When a fullscreen window is re-mapped from a deactivated screen to the
remaining screen, the call to QPlatformWindow::setGeometry() assigns
an invalid QRect to QPlatformWindowPrivate::rect
The negative int values x2 and/or y2 cause
QXcbBackingStoreImage::flushPixmap to address unmapped memory and
crash.

This patch moves the call to QPlatformWindow::setGeometry() from
before to after bounding to a minimum value. That assures a valid
rectangle to be assigned in all cases.

Fixes: QTBUG-109226
Pick-to: 6.4 6.2 5.15
Change-Id: I349a0f3c721059a9013a275de5b4cb147fbdd7a1
Reviewed-by: Liang Qi <[email protected]>

0 files changed, 0 insertions, 0 deletions