Description: drm/vmwgfx: Do not drop the reference to the handle too soon
References:
 https://www.zerodayinitiative.com/advisories/ZDI-CAN-20110/
Notes:
 carnil> Commit fixes 8afa13a0583f ("drm/vmwgfx: Implement DRIVER_GEM")
 carnil> in 5.17-rc1.
Bugs:
upstream: released (6.4-rc1) [9ef8d83e8e25d5f1811b3a38eb1484f85f64296c]
6.1-upstream-stable: released (6.1.13) [0a127ac972404600c99eb141c8d5b5348e53ee4f]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.1.15-1)
6.1-bookworm-security: N/A "Fixed before branching point"
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"