Wind River Support Network


LIN1021-2375 : Security Advisory - linux - CVE-2021-4197

Created: Jan 9, 2022    Updated: May 5, 2022
Resolved Date: May 5, 2022
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel


An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.


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