CVE-2022-4269

kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

Published Dec 5, 2022 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3623-1 linux-5.10 security update
Debian DSA Debian DSA DSA-5480-1 linux security update
EUVD EUVD EUVD-2022-51625 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.
Ubuntu USN Ubuntu USN USN-6033-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6171-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6175-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6186-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6187-1 Linux kernel (IBM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6284-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6300-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6301-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6311-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6312-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6314-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6331-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6332-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6337-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6347-1 Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6385-1 Linux kernel (OEM) vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 14, 2026, 1:52 PM
Reserved
Dec 2, 2022, 12:00 AM
Status
Modified
Published
Dec 5, 2022, 4:15 PM
Modified
Oct 14, 2026, 2:17 PM
Severity
Moderate
Public date
Sep 23, 2022, 12:00 AM