Fix crashes when using the QImage(uchar *) data constructors

The constructors expect a range of memory that remains valid
through the lifetime of the image and may also modify it.
Crashes occurred since apparently the Py_Buffer was released before
it.

To fix this, add a new buffer helper, copyData() that makes a copy
of the data and pass that along with std::free() as cleanup
function.

Pick-to: 6.1 5.15
Fixes: PYSIDE-1563
Change-Id: Idb09eadea658f02968f75c6bdfc6cc3f467111d5
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

0 files changed, 0 insertions, 0 deletions