K000137058 : Linux kernel vulnerability CVE-2022-4269

Security Advisory 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. (CVE-2022-4269)

Impact

This vulnerability allows a local, authenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the Traffix SDC system.