vulnerability
Red Hat: CVE-2021-20317: CVE-2021-20317 kernel: timer tree corruption leads to missing wakeup and system freeze (Multiple Advisories)
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Sep 27, 2021 | Nov 16, 2021 | Jul 9, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Sep 27, 2021
Added
Nov 16, 2021
Modified
Jul 9, 2025
Description
A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt

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