CVE-2022-4269

MEDIUM

Linux Kernel - Denial of Service via Traffic Control Mirred Action Deadlock

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 5.5
EPSS 0.0020
EPSS Percentile 9.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-833
Status published
Products (1)
linux/linux_kernel 4.1 rc1
Published Dec 05, 2022
Tracked Since Feb 18, 2026