CVE-2021-20317

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.

References

https://www.debian.org/security/2022/dsa-5096

https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885d7061eda3eb1faf3f57dcc936ff75863f1

https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

https://bugzilla.redhat.com/show_bug.cgi?id=2005258

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3