Fixes the following security issues:
1) CVE-2023-6816 can be triggered by passing an invalid array index to
DeviceFocusEvent or ProcXIQueryPointer.
2) CVE-2024-0229 can be triggered if a device has both a button and a
key class and zero buttons.
3) CVE-2024-21885 can be triggered if a device with a given ID was
removed and a new device with the same ID added both in the same
operation.
4) CVE-2024-21886 can be triggered by disabling a master device with
disabled slave devices.
5) CVE-2024-0409 can be triggered by enabling SELinux
xserver_object_manager and running a client.
6) CVE-2024-0408 can be triggered by enabling SELinux
xserver_object_manager and creating a GLX PBuffer.
For details, see the advisory:
https://lists.x.org/archives/xorg-announce/2024-January/003444.html
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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