VULNERABILITY INTELLIGENCE
CVE-2022-4269
CVSS score5.5 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2022-12-05
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.
Weakness classification
- secalert@redhat.com: CWE-833