Description: af_unix: Fix memory leaks of the whole sk due to OOB skb.
References:
Notes:
 carnil> Commit fixes 314001f0bf92 ("af_unix: Add OOB support") in 5.15-rc1.
 carnil> For 6.0.y fixed as well in 6.0.3.
Bugs:
upstream: released (6.1-rc1) [7a62ed61367b8fd01bae1e18e30602c25060d824]
5.10-upstream-stable: N/A "Vulnerable code introduced later"
4.19-upstream-stable: N/A "Vulnerable code introduced later"
sid: released (6.0.3-1)
5.10-bullseye-security: N/A "Vulnerable code introduced later"
4.19-buster-security: N/A "Vulnerable code introduced later"