cve-2021-4197_2 from ubuntu_ltp_cve failed on J-s390x

[Po-Hsu Lin]

Issue found on Jammy 5.15 since 5.15.0-93.103 (sru-20240108) on manually provisioned s390x instance kernel07 and s2lp4.

Test log:
 INFO: Test start time: Tue Jan 9 05:09:13 EST 2024
 COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 246685 -n 246685 -f /tmp/ltp-PYjilUHcBF/alltests -l /dev/null -C /dev/null -T /dev/null
 LOG File: /dev/null
 FAILED COMMAND File: /dev/null
 TCONF COMMAND File: /dev/null
 Running tests.......
 tst_test.c:1690: TINFO: LTP version: 20230929-185-g19ef6521d
 tst_test.c:1574: TINFO: Timeout per run is 0h 00m 30s
 cgroup_core02.c:82: TFAIL: test_lesser_ns_open failed

 HINT: You _MAY_ be missing kernel fixes:

 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e57457641613

 HINT: You _MAY_ be vulnerable to CVE(s):

 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4197

 Summary:
 passed 0
 failed 1
 broken 0
 skipped 0
 warnings 0
 INFO: ltp-pan reported some tests FAIL
 LTP Version: 20230929-185-g19ef6521d
 INFO: Test end time: Tue Jan 9 05:09:13 EST 2024

Since this issue does not exist on openstack s390x instance, it's probably related to the test environment.
Also, this test case does not exist before our recent LTP fork update before sru-20240108.

[Po-Hsu Lin (cypressyew)]

This is affecting Mantic 6.5 s390x manually provisioned instances as well.

[Po-Hsu Lin (cypressyew)]

Note that this shares the same test with ubuntu_ltp_controllers/cgroup_core02
I will mark this one as duplicated.