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TI-2022-03909 Aliases CVE-2022-4269GHSA-xv49-pvqx-8xr6

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

Priority LOW 24CWE-833Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 21 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00201 10th percentileScored 2026-11-07
Fix Partial Red Hat: 9 advisoriesRed Hat: 21 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Linux kernel (TC subsystem)Since upstream commit 53592b3 (v4.10-rc1)—No fix listedCNA
  • Linux kernel (TC subsystem) Vendor— Affected Since upstream commit 53592b3 (v4.10-rc1) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:4.1:rc1:*:*:*:*:*:*4.1 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:4.1:rc1:*:*:*:*:*:* Versions 4.1 rc1 Vulnerable ·Linux

Remediation

Red Hat 9 advisories

  • RHSA-2023:1566 Released 2023-04-04 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.19.2.el8_7
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.19.2.el8_7, kernel-4.18.0-425.19.2.el8_7, kernel-abi-stablelists-4.18.0-425.19.2.el8_7 +19
  • RHSA-2023:1584 Released 2023-04-04 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time for NFV (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-debug-4.18.0-425.19.2.rt7.230.el8_7 +9
    • 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-debug-4.18.0-425.19.2.rt7.230.el8_7 +7
  • RHSA-2023:1470 Released 2023-03-27 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-162.22.2.el9_1
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-162.22.2.el9_1, kernel-debug-devel-matched-5.14.0-162.22.2.el9_1, kernel-devel-5.14.0-162.22.2.el9_1 +5
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-162.22.2.el9_1, kernel-5.14.0-162.22.2.el9_1, kernel-abi-stablelists-5.14.0-162.22.2.el9_1 +14
Show 6 more Red Hat advisories
  • RHSA-2023:1469 Released 2023-03-27 · Red Hat rating Important
    kernel-rt security and bug fix update
    • 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-debug-5.14.0-162.22.2.rt21.186.el9_1 +7
    • Red Hat Enterprise Linux Real Time for NFV (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-debug-5.14.0-162.22.2.rt21.186.el9_1 +9
  • RHSA-2023:1221 Released 2023-03-14 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bpftool-4.18.0-305.82.1.el8_4, kernel-4.18.0-305.82.1.el8_4, kernel-abi-stablelists-4.18.0-305.82.1.el8_4 +19
    • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-tools-libs-devel-4.18.0-305.82.1.el8_4
  • RHSA-2023:1220 Released 2023-03-14 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV 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-debug-4.18.0-305.82.1.rt7.154.el8_4 +9
    • 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-debug-4.18.0-305.82.1.rt7.154.el8_4 +7
  • RHSA-2023:1202 Released 2023-03-14 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.49.1.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.49.1.el9_0, kernel-debug-devel-matched-5.14.0-70.49.1.el9_0, kernel-devel-5.14.0-70.49.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.49.1.el9_0, kernel-5.14.0-70.49.1.el9_0, kernel-abi-stablelists-5.14.0-70.49.1.el9_0 +14
  • RHSA-2023:1203 Released 2023-03-14 · Red Hat rating Important
    kernel-rt security and bug fix update
    • 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-debug-5.14.0-70.49.1.rt21.120.el9_0 +7
    • 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-core-5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-5.14.0-70.49.1.rt21.120.el9_0 +9
  • RHSA-2023:1130 Released 2023-03-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.46.1.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.46.1.el8_6, kernel-4.18.0-372.46.1.el8_6, kernel-abi-stablelists-4.18.0-372.46.1.el8_6 +19
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.46.1.el8_6, perf-4.18.0-372.46.1.el8_6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2023:1566
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2023:1470
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2023:1130
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2023:1202
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:1470
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:1202
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:1566
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:1470
Red Hat Enterprise Linux BaseOS EUS (v.8.4)Fixed RHSA-2023:1221
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2023:1130
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2023:1202
Red Hat Enterprise Linux CRB EUS (v.8.4)Fixed RHSA-2023:1221
Red Hat Enterprise Linux NFV EUS (v.8.4)Fixed RHSA-2023:1220
Red Hat Enterprise Linux RT EUS (v.8.4)Fixed RHSA-2023:1220
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2023:1469
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2023:1203
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2023:1584
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2023:1469
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)Fixed RHSA-2023:1203
Red Hat Enterprise Linux for Real Time (v. 8)Fixed RHSA-2023:1584
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2023:1130
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4269
  2. 2026-10-03 Alias added: GHSA-xv49-pvqx-8xr6

References

Other 4

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences