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Fencer Vulns
medium 5.5

CVE-2022-4269 json

A flaw was found in the Linux kernel Traffic Control (TC) subsystem.

published 2022-12-05 3 y ago modified 2026-10-14 25 d ago also EUVD-2022-51625

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 10%
public exploits
0
none known

Summary

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.

Patch / fix

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • linux Debian 14, Debian 13, Debian 12 6.1.20-2

debian advisories DEBIAN-CVE-2022-4269

  • linux Ubuntu 20.04 LTS 5.4.0-156.173
  • linux Ubuntu 22.04 LTS 5.15.0-79.86
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1107.115
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1042.47
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1110.119
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1039.47
  • linux-gke Ubuntu 20.04 LTS 5.4.0-1105.112
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1039.44

ubuntu advisories UBUNTU-CVE-2022-4269

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • perf rhev hypervisor 4.4, RHEL 8.6 EUS 4.18.0-372.46.1.el8_6
  • kernel RHEL 8 4.18.0-425.19.2.el8_7
  • perf RHEL 8 4.18.0-425.19.2.el8_7
  • bpftool RHEL 8 4.18.0-425.19.2.el8_7
  • kernel-core RHEL 8 4.18.0-425.19.2.el8_7
  • kernel-tools RHEL 8 4.18.0-425.19.2.el8_7
  • python3-perf RHEL 8 4.18.0-425.19.2.el8_7
  • kernel-modules RHEL 8 4.18.0-425.19.2.el8_7

red hat advisories RHSA-2023:1202RHSA-2023:1203RHSA-2023:1130RHSA-2023:1566RHSA-2023:1584RHSA-2023:1470

  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-syms SLE Module for Development Tools 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-obs-qa openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-default SLE Workstation Extension 15 SP5, SLE Module for Legacy 15 SP5, SLE Module for Basesystem 15 SP5 +3 more 5.14.21-150500.55.7.1
  • kernel-kvmsmall openSUSE Leap 15.5 5.14.21-150500.55.7.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.7.1

suse advisories SUSE-SU-2023:2871-1SUSE-SU-2023:2809-1SUSE-SU-2023:2782-1SUSE-SU-2023:2653-1SUSE-SU-2023:2651-1SUSE-SU-2023:2646-1

  • kernel AlmaLinux 8 4.18.0-425.19.2.el8_7
  • perf AlmaLinux 8 4.18.0-425.19.2.el8_7
  • bpftool AlmaLinux 8 4.18.0-425.19.2.el8_7
  • kernel-core AlmaLinux 8 4.18.0-425.19.2.el8_7
  • kernel-tools AlmaLinux 8 4.18.0-425.19.2.el8_7
  • python3-perf AlmaLinux 8 4.18.0-425.19.2.el8_7
  • kernel-modules AlmaLinux 8 4.18.0-425.19.2.el8_7
  • kernel-zfcpdump AlmaLinux 8 4.18.0-425.19.2.el8_7

almalinux advisories ALSA-2023:1566ALSA-2023:1584ALSA-2023:1469ALSA-2023:1470

  • kernel Rocky Linux 8 4.18.0-425.19.2.el8_7.cloud
  • kernel-rt Rocky Linux 8 4.18.0-425.19.2.rt7.230.el8_7
  • kernel Rocky Linux 8 4.18.0-425.19.2.el8_7
  • kernel Rocky Linux 9 5.14.0-162.22.2.el9_1
  • kernel-rt Rocky Linux 9 5.14.0-162.22.2.rt21.186.el9_1

rocky linux advisories RXSA-2023:1566RLSA-2023:1584RLSA-2023:1566RLSA-2023:1470RLSA-2023:1469

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-4269 updated cvss 5.5

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

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-425.19.2.el8_7, kernel-debuginfo-common-aarch64 4.18.0-425.19.2.el8_7, kernel-debuginfo-common-ppc64le 4.18.0-425.19.2.el8_7
    fixed: vendor fix RHSA-2023:1566
  • Red Hat CodeReady Linux Builder (v. 9) kernel-debuginfo-common-s390x 5.14.0-162.22.2.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.22.2.el9_1, kernel-debuginfo-common-aarch64 5.14.0-162.22.2.el9_1, kernel-debuginfo-common-ppc64le 5.14.0-162.22.2.el9_1
    fixed: vendor fix RHSA-2023:1470
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.46.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.46.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.46.1.el8_6
    fixed: vendor fix RHSA-2023:1130
  • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-debuginfo-common-s390x 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-aarch64 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-ppc64le 5.14.0-70.49.1.el9_0
    fixed: vendor fix RHSA-2023:1202
  • Red Hat Enterprise Linux AppStream (v. 9) perf 5.14.0-162.22.2.el9_1, kernel-devel-matched 5.14.0-162.22.2.el9_1, kernel-debug-devel-matched 5.14.0-162.22.2.el9_1, kernel-debuginfo-common-s390x 5.14.0-162.22.2.el9_1, kernel-zfcpdump-devel-matched 5.14.0-162.22.2.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.22.2.el9_1, +2 more
    fixed: vendor fix RHSA-2023:1470
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) perf 5.14.0-70.49.1.el9_0, kernel-devel-matched 5.14.0-70.49.1.el9_0, kernel-debug-devel-matched 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.49.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.49.1.el9_0, +2 more
    fixed: vendor fix RHSA-2023:1202
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-425.19.2.el8_7, kernel 4.18.0-425.19.2.el8_7, bpftool 4.18.0-425.19.2.el8_7, kernel-core 4.18.0-425.19.2.el8_7, kernel-tools 4.18.0-425.19.2.el8_7, python3-perf 4.18.0-425.19.2.el8_7, +15 more
    fixed: vendor fix RHSA-2023:1566
show 15 more
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-162.22.2.el9_1, bpftool 5.14.0-162.22.2.el9_1, kernel-core 5.14.0-162.22.2.el9_1, kernel-tools 5.14.0-162.22.2.el9_1, python3-perf 5.14.0-162.22.2.el9_1, kernel-modules 5.14.0-162.22.2.el9_1, +14 more
    fixed: vendor fix RHSA-2023:1470
  • Red Hat Enterprise Linux BaseOS EUS (v.8.4) perf 4.18.0-305.82.1.el8_4, kernel 4.18.0-305.82.1.el8_4, bpftool 4.18.0-305.82.1.el8_4, kernel-core 4.18.0-305.82.1.el8_4, kernel-tools 4.18.0-305.82.1.el8_4, python3-perf 4.18.0-305.82.1.el8_4, +15 more
    fixed: vendor fix RHSA-2023:1221
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.46.1.el8_6, kernel 4.18.0-372.46.1.el8_6, bpftool 4.18.0-372.46.1.el8_6, kernel-core 4.18.0-372.46.1.el8_6, kernel-tools 4.18.0-372.46.1.el8_6, python3-perf 4.18.0-372.46.1.el8_6, +15 more
    fixed: vendor fix RHSA-2023:1130
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0) kernel 5.14.0-70.49.1.el9_0, bpftool 5.14.0-70.49.1.el9_0, kernel-core 5.14.0-70.49.1.el9_0, kernel-tools 5.14.0-70.49.1.el9_0, python3-perf 5.14.0-70.49.1.el9_0, kernel-modules 5.14.0-70.49.1.el9_0, +14 more
    fixed: vendor fix RHSA-2023:1202
  • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-debuginfo-common-x86_64 4.18.0-305.82.1.el8_4, kernel-debuginfo-common-aarch64 4.18.0-305.82.1.el8_4, kernel-debuginfo-common-ppc64le 4.18.0-305.82.1.el8_4
    fixed: vendor fix RHSA-2023:1221
  • Red Hat Enterprise Linux for Real Time (v. 8) kernel-rt 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-core 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-modules 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-core 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-modules 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-modules-extra 4.18.0-425.19.2.rt7.230.el8_7, +2 more
    fixed: vendor fix RHSA-2023:1584
  • Red Hat Enterprise Linux NFV EUS (v.8.4) kernel-rt 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-kvm 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-core 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-modules 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-debug-kvm 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-debug-core 4.18.0-305.82.1.rt7.154.el8_4, +4 more
    fixed: vendor fix RHSA-2023:1220
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-core 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-modules 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-debug-core 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-debug-modules 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-modules-extra 5.14.0-162.22.2.rt21.186.el9_1, +2 more
    fixed: vendor fix RHSA-2023:1469
  • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules-extra 5.14.0-70.49.1.rt21.120.el9_0, +2 more
    fixed: vendor fix RHSA-2023:1203
  • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-kvm 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-core 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-modules 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-kvm 4.18.0-425.19.2.rt7.230.el8_7, kernel-rt-debug-core 4.18.0-425.19.2.rt7.230.el8_7, +4 more
    fixed: vendor fix RHSA-2023:1584
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-kvm 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-core 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-modules 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-debug-kvm 5.14.0-162.22.2.rt21.186.el9_1, kernel-rt-debug-core 5.14.0-162.22.2.rt21.186.el9_1, +4 more
    fixed: vendor fix RHSA-2023:1469
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-kvm 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-kvm 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-core 5.14.0-70.49.1.rt21.120.el9_0, +4 more
    fixed: vendor fix RHSA-2023:1203
  • Red Hat Enterprise Linux RT EUS (v.8.4) kernel-rt 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-core 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-modules 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-debug-core 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-debug-modules 4.18.0-305.82.1.rt7.154.el8_4, kernel-rt-modules-extra 4.18.0-305.82.1.rt7.154.el8_4, +2 more
    fixed: vendor fix RHSA-2023:1220
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.46.1.el8_6, kernel-debuginfo-common-x86_64 4.18.0-372.46.1.el8_6
    fixed: vendor fix RHSA-2023:1130
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-166-11 updated cvss 5.5

Siemens SIMATIC S7-1500 TM MFP Linux Kernel

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • n/a Linux kernel (TC subsystem)
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.