A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.
https://bugzilla.redhat.com/show_bug.cgi?id=1868453
https://bugzilla.kernel.org/show_bug.cgi?id=208003
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00047.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html
https://security.netapp.com/advisory/ntap-20200904-0002/
https://usn.ubuntu.com/4484-1/
https://usn.ubuntu.com/4483-1/
https://usn.ubuntu.com/4526-1/
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Source: MITRE
Published: 2020-08-19
Updated: 2023-02-24
Type: CWE-476
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH