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TI-2022-04340 Aliases CVE-2022-4744GHSA-5r2r-5wx4-7x33

Double free in Kernel

Priority LOW 36CWE-460Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 16 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00459 40th percentileScored 2026-11-07
Fix Partial Red Hat: 9 advisoriesRed Hat: 16 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—KernelLinux kernel 5.16-rc7—No fix listedCNA
  • Kernel Vendor— Affected Linux kernel 5.16-rc7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*5.5 to before 5.10.136; 5.11 to before 5.15.12VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.5 to before 5.10.136; 5.11 to before 5.15.12 Vulnerable ·Linux

Remediation

Red Hat 9 advisories

  • RHSA-2024:1404 Released 2024-03-19 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.51.1.el8_8
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.51.1.el8_8, kernel-4.18.0-477.51.1.el8_8, kernel-abi-stablelists-4.18.0-477.51.1.el8_8 +19
  • RHSA-2023:7077 Released 2023-11-14 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-513.5.1.el8_9
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-513.5.1.el8_9, kernel-4.18.0-513.5.1.el8_9, kernel-abi-stablelists-4.18.0-513.5.1.el8_9 +19
  • RHSA-2023:6901 Released 2023-11-14 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-core-4.18.0-513.5.1.rt7.307.el8_9, kernel-rt-debug-4.18.0-513.5.1.rt7.307.el8_9 +9
Show 6 more Red Hat advisories
  • RHSA-2023:1468 Released 2023-03-27 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.50.2.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.50.2.el9_0, kernel-debug-devel-matched-5.14.0-70.50.2.el9_0, kernel-devel-5.14.0-70.50.2.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.50.2.el9_0, kernel-5.14.0-70.50.2.el9_0, kernel-abi-stablelists-5.14.0-70.50.2.el9_0 +14
  • 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
  • RHSA-2023:1466 Released 2023-03-27 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) kpatch-patch-5_14_0-70_26_1-1-6.el9_0, kpatch-patch-5_14_0-70_30_1-1-4.el9_0, kpatch-patch-5_14_0-70_36_1-1-3.el9_0 +2
  • RHSA-2023:1471 Released 2023-03-27 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-162_12_1-1-2.el9_1, kpatch-patch-5_14_0-162_18_1-1-1.el9_1, kpatch-patch-5_14_0-162_6_1-1-3.el9_1
  • 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-2023:1467 Released 2023-03-27 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.50.2.rt21.122.el9_0, kernel-rt-core-5.14.0-70.50.2.rt21.122.el9_0, kernel-rt-debug-5.14.0-70.50.2.rt21.122.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.50.2.rt21.122.el9_0, kernel-rt-core-5.14.0-70.50.2.rt21.122.el9_0, kernel-rt-debug-5.14.0-70.50.2.rt21.122.el9_0 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Virtualization 4AffectedNo fix yet
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2023:7077
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2023:1470
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:1404
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2023:1468
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:1470
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2023:1468
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:7077
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:1470, RHSA-2023:1471
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:1404
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2023:1466, RHSA-2023:1468
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2023:6901
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2023:1469
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2023:1467
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2023:6901
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-2023:1467
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4744
  2. 2026-10-03 Alias added: GHSA-5r2r-5wx4-7x33

References

Advisory 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