CVE-2024-46698

In the Linux kernel, the following vulnerability has been resolved:

video/aperture: optionally match the device in sysfb_disable()

In apertureremoveconflictingpcidevices(), we currently only call sysfb_disable() on vga class devices. This leads to the following problem when the pimary device is not VGA compatible:

1. A PCI device with a non-VGA class is the boot display
2. That device is probed first and it is not a VGA device so sysfbdisable() is not called, but the device resources are freed by aperturedetachplatformdevice()
3. Non-primary GPU has a VGA class and it ends up calling sysfb_disable()
4. NULL pointer dereference via sysfbdisable() since the resources have already been freed by aperturedetachplatformdevice() when it was called by the other device.

Fix this by passing a device pointer to sysfb_disable() and checking the device to determine if we should execute it or not.

v2: Fix build when CONFIGSCREENINFO is not set v3: Move device check into the mutex Drop primary variable in apertureremoveconflictingpcidevices() Drop _init on pci sysfbpcidevis_enabled()