Description: sched/fair: Prevent dead task groups from regaining cfs_rq's
References:
Notes:
 carnil> Introduced in a7b359fc6a37 ("sched/fair: Correctly insert cfs_rq's to list on
 carnil> unthrottle"). Vulnerable versions: 5.13-rc7.
Bugs:
upstream: released (5.16-rc1) [b027789e5e50494c2325cc70c8642e7fd6059479]
6.8-upstream-stable: N/A "Fixed before branching point"
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: N/A "Fixed before branching point"
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.15.5-1)
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"