Description: ovl: fix use after free in struct ovl_aio_req
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=2176140
Notes:
Bugs:
upstream: released (5.16-rc1) [9a254403760041528bc8f69fe2f5e1ef86950991]
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: released (5.10.80) [4fd9f0509a1452b45e89c668e2bab854cb05cd25]
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.15.3-1)
5.10-bullseye-security: released (5.10.84-1)
4.19-buster-security: N/A "Vulnerable code not present"