Description: drm/vmwgfx: Keep a gem reference to user bos in surfaces
References:
 https://lists.freedesktop.org/archives/dri-devel/2023-September/424805.html
Notes:
 carnil> Commit fixes a950b989ea29 ("drm/vmwgfx: Do not drop the
 carnil> reference to the handle too soon") in 6.2 (and backported to
 carnil> 6.1.13) (which is part of the changes to address CVE-2023-33951
 carnil> and CVE-2023-33952)
Bugs:
upstream: released (6.6-rc6) [91398b413d03660fd5828f7b4abc64e884b98069]
6.1-upstream-stable: released (6.1.75) [104f95698cad038caa8f7496be67f738d8ace9cb]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.5.8-1)
6.1-bookworm-security: released (6.1.76-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"