During a VT-Switch a raw pointer to the shared cursor object
is saved which is then freed (in case of low refcount) by a call to
xf86CursorSetCursor with argument pCurs = NullCursor.
This leads to a dangling pointer which can follow in a use after free.
This fix ensures that there is a shared handle saved for the VT-Switch cycle.
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
(cherry picked from commit
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| kdrive | ||
| vfb | ||
| xfree86 | ||
| xnest | ||
| xquartz | ||
| xwayland | ||
| xwin | ||
| Makefile.am | ||
| meson.build | ||