Wind River Support Network


LIN1021-2205 : Security Advisory - linux - CVE-2021-4083

Created: Dec 15, 2021    Updated: Feb 13, 2022
Resolved Date: Dec 20, 2021
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel


A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.


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