Description: drm/vgem: Close use-after-free race in vgem_gem_create
References:
 https://www.openwall.com/lists/oss-security/2022/04/21/1
Notes:
Bugs:
upstream: released (5.6-rc2) [4b848f20eda5974020f043ca14bacf7a7e634fc8]
5.10-upstream-stable: N/A "Fixed before branching point"
4.19-upstream-stable: released (4.19.242) [df2c1f38939aabb8c6beca108f08b90f050b9ebc]
4.9-upstream-stable: needed
sid: released (5.5.13-1)
5.10-bullseye-security: N/A "Fixed before branching point"
4.19-buster-security: released (4.19.249-1)
4.9-stretch-security: ignored "EOL"