CVE-2021-20317
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.4%
exploitation probability
0.4%top 66% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · kernelReferences
https://bugzilla.redhat.com/show_bug.cgi?id=2005258https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdfhttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885d7061eda3eb1faf3f57dcc936ff75863f1https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlhttps://www.debian.org/security/2022/dsa-5096