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TI-2022-02390 Aliases CVE-2022-2588

Use after free in linux

Priority HIGH 67CWE-416Published · 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: 38 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.05871 93rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial linux (The Linux Kernel Organization): 6.0~rc1Red Hat: 20 advisoriesRed Hat: 38 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
Linuxlinuxbefore 6.0~rc16.0~rc1Patch availableCNA
  • linux VendorLinux Affected before 6.0~rc1 Fixed in 6.0~rc1 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 4.9.326; 4.10 to before 4.14.291; 4.15 to before 4.19.256; 4.20 to before 5.4.211; 5.5 to before 5.10.137; 5.11 to before 5.15.61; 5.16 to before 5.18.18; 5.19 to before 5.19.2VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*22.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.9.326; 4.10 to before 4.14.291; 4.15 to before 4.19.256; 4.20 to before 5.4.211; 5.5 to before 5.10.137; 5.11 to before 5.15.61; 5.16 to before 5.18.18; 5.19 to before 5.19.2 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:esm:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:* Versions 22.04 Vulnerable ·Canonical

Remediation

  • Fix · CNA linux (The Linux Kernel Organization) Fixed in 6.0~rc1

Red Hat 20 advisories

  • RHSA-2023:4023 Released 2023-07-11 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server E4S (v. 7.7) kpatch-patch-3_10_0-1062_71_1-1-2.el7, kpatch-patch-3_10_0-1062_72_1-1-1.el7
  • RHSA-2023:4022 Released 2023-07-11 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) bpftool-3.10.0-1062.76.1.el7, kernel-3.10.0-1062.76.1.el7, kernel-abi-whitelists-3.10.0-1062.76.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.7) bpftool-3.10.0-1062.76.1.el7, kernel-3.10.0-1062.76.1.el7, kernel-abi-whitelists-3.10.0-1062.76.1.el7 +9
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.76.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.7) kernel-debug-devel-3.10.0-1062.76.1.el7, kernel-tools-libs-devel-3.10.0-1062.76.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.76.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.7) bpftool-3.10.0-1062.76.1.el7, kernel-3.10.0-1062.76.1.el7, kernel-abi-whitelists-3.10.0-1062.76.1.el7 +8
  • RHSA-2022:7885 Released 2022-11-09 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) kpatch-patch-4_18_0-193_80_1-1-2.el8_2, kpatch-patch-4_18_0-193_81_1-1-2.el8_2, kpatch-patch-4_18_0-193_87_1-1-1.el8_2 +2
Show 17 more Red Hat advisories
  • RHSA-2022:7344 Released 2022-11-02 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server (v. 7) kpatch-patch-3_10_0-1160_62_1-1-3.el7, kpatch-patch-3_10_0-1160_66_1-1-2.el7, kpatch-patch-3_10_0-1160_71_1-1-1.el7 +1
  • RHSA-2022:7338 Released 2022-11-02 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.80.1.rt56.1225.el7, kernel-rt-debug-3.10.0-1160.80.1.rt56.1225.el7, kernel-rt-debug-devel-3.10.0-1160.80.1.rt56.1225.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.80.1.rt56.1225.el7, kernel-rt-debug-3.10.0-1160.80.1.rt56.1225.el7, kernel-rt-debug-devel-3.10.0-1160.80.1.rt56.1225.el7 +7
  • RHSA-2022:7337 Released 2022-11-02 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.80.1.el7, kernel-3.10.0-1160.80.1.el7, kernel-abi-whitelists-3.10.0-1160.80.1.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.80.1.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.80.1.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.80.1.el7, kernel-3.10.0-1160.80.1.el7, kernel-abi-whitelists-3.10.0-1160.80.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.80.1.el7, kernel-tools-libs-devel-3.10.0-1160.80.1.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.80.1.el7, kernel-3.10.0-1160.80.1.el7, kernel-abi-whitelists-3.10.0-1160.80.1.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.80.1.el7
  • RHSA-2022:7279 Released 2022-11-01 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.93.1.el8_2, kernel-4.18.0-193.93.1.el8_2, kernel-abi-whitelists-4.18.0-193.93.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) bpftool-4.18.0-193.93.1.el8_2, kernel-4.18.0-193.93.1.el8_2, kernel-abi-whitelists-4.18.0-193.93.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) bpftool-4.18.0-193.93.1.el8_2, kernel-4.18.0-193.93.1.el8_2, kernel-abi-whitelists-4.18.0-193.93.1.el8_2 +14
  • RHSA-2022:7280 Released 2022-11-01 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt-4.18.0-193.93.1.rt13.143.el8_2, kernel-rt-core-4.18.0-193.93.1.rt13.143.el8_2, kernel-rt-debug-4.18.0-193.93.1.rt13.143.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt-4.18.0-193.93.1.rt13.143.el8_2, kernel-rt-core-4.18.0-193.93.1.rt13.143.el8_2, kernel-rt-debug-4.18.0-193.93.1.rt13.143.el8_2 +9
  • RHSA-2022:7171 Released 2022-10-25 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 7.6) bpftool-3.10.0-957.99.1.el7, kernel-3.10.0-957.99.1.el7, kernel-abi-whitelists-3.10.0-957.99.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.6) kernel-3.10.0-957.99.1.el7, kernel-abi-whitelists-3.10.0-957.99.1.el7, kernel-bootwrapper-3.10.0-957.99.1.el7 +8
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.99.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.6) kernel-debug-devel-3.10.0-957.99.1.el7, kernel-tools-libs-devel-3.10.0-957.99.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.99.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.6) bpftool-3.10.0-957.99.1.el7, kernel-3.10.0-957.99.1.el7, kernel-abi-whitelists-3.10.0-957.99.1.el7 +8
  • RHSA-2022:7173 Released 2022-10-25 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server E4S (v. 7.6) kpatch-patch-3_10_0-957_84_1-1-6.el7, kpatch-patch-3_10_0-957_92_1-1-3.el7, kpatch-patch-3_10_0-957_94_1-1-2.el7 +2
  • RHSA-2022:7146 Released 2022-10-25 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.106.1.el7, kernel-abi-whitelists-3.10.0-693.106.1.el7, kernel-debug-3.10.0-693.106.1.el7 +7
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.106.1.el7
  • RHSA-2022:7134 Released 2022-10-25 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-372.32.1.rt7.189.el8_6, kernel-rt-core-4.18.0-372.32.1.rt7.189.el8_6, kernel-rt-debug-4.18.0-372.32.1.rt7.189.el8_6 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-372.32.1.rt7.189.el8_6, kernel-rt-core-4.18.0-372.32.1.rt7.189.el8_6, kernel-rt-debug-4.18.0-372.32.1.rt7.189.el8_6 +7
  • RHSA-2022:7137 Released 2022-10-25 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-372_13_1-1-2.el8_6, kpatch-patch-4_18_0-372_16_1-1-2.el8_6, kpatch-patch-4_18_0-372_19_1-1-1.el8_6 +2
  • RHSA-2022:7110 Released 2022-10-25 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-372.32.1.el8_6, kernel-4.18.0-372.32.1.el8_6, kernel-abi-stablelists-4.18.0-372.32.1.el8_6 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-372.32.1.el8_6
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.32.1.el8_6, perf-4.18.0-372.32.1.el8_6
  • RHSA-2022:6983 Released 2022-10-18 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bpftool-4.18.0-305.65.1.el8_4, kernel-4.18.0-305.65.1.el8_4, kernel-abi-stablelists-4.18.0-305.65.1.el8_4 +19
    • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-tools-libs-devel-4.18.0-305.65.1.el8_4
  • RHSA-2022:6991 Released 2022-10-18 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV EUS (v.8.4) kernel-rt-4.18.0-305.65.1.rt7.137.el8_4, kernel-rt-core-4.18.0-305.65.1.rt7.137.el8_4, kernel-rt-debug-4.18.0-305.65.1.rt7.137.el8_4 +9
    • Red Hat Enterprise Linux RT EUS (v.8.4) kernel-rt-4.18.0-305.65.1.rt7.137.el8_4, kernel-rt-core-4.18.0-305.65.1.rt7.137.el8_4, kernel-rt-debug-4.18.0-305.65.1.rt7.137.el8_4 +7
  • RHSA-2022:6978 Released 2022-10-18 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) kpatch-patch-4_18_0-305_25_1-1-9.el8_4, kpatch-patch-4_18_0-305_45_1-1-3.el8_4, kpatch-patch-4_18_0-305_49_1-1-2.el8_4 +2
  • RHSA-2022:6875 Released 2022-10-11 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) kpatch-patch-4_18_0-147_64_1-1-4.el8_1, kpatch-patch-4_18_0-147_65_1-1-3.el8_1, kpatch-patch-4_18_0-147_67_1-1-2.el8_1 +2
  • RHSA-2022:6872 Released 2022-10-11 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bpftool-4.18.0-147.76.1.el8_1, kernel-4.18.0-147.76.1.el8_1, kernel-abi-whitelists-4.18.0-147.76.1.el8_1 +14
  • RHSA-2022:6551 Released 2022-09-19 · Red Hat rating Important
    Red Hat Virtualization security update
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host-4.5.2-202209140405_8.6, redhat-virtualization-host-image-update-4.5.2-202209140405_8.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    The Linux Kernel Organization linux 6.0~rc1

    2 records Highest priority Priority HIGH 1 HIGH, 1 LOW

    Other records, highest priority first

    Show all 2 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:7110, RHSA-2022:7137
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2022:7279
Red Hat Enterprise Linux BaseOS E4S (v. 8.1)Fixed RHSA-2022:6872, RHSA-2022:6875
Red Hat Enterprise Linux BaseOS E4S (v. 8.2)Fixed RHSA-2022:7279, RHSA-2022:7885
Red Hat Enterprise Linux BaseOS EUS (v.8.4)Fixed RHSA-2022:6978, RHSA-2022:6983
Red Hat Enterprise Linux BaseOS TUS (v. 8.2)Fixed RHSA-2022:7279
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:7110
Red Hat Enterprise Linux CRB EUS (v.8.4)Fixed RHSA-2022:6983
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2022:7134
Red Hat Enterprise Linux NFV EUS (v.8.4)Fixed RHSA-2022:6991
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2022:7134
Red Hat Enterprise Linux RT EUS (v.8.4)Fixed RHSA-2022:6991
Red Hat Enterprise Linux Real Time TUS (v. 8.2)Fixed RHSA-2022:7280
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2)Fixed RHSA-2022:7280
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:7337, RHSA-2022:7344
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2022:7146
Red Hat Enterprise Linux Server AUS (v. 7.6)Fixed RHSA-2022:7171
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2023:4022
Red Hat Enterprise Linux Server E4S (v. 7.6)Fixed RHSA-2022:7171, RHSA-2022:7173
Red Hat Enterprise Linux Server E4S (v. 7.7)Fixed RHSA-2023:4022, RHSA-2023:4023
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2022:7146
Red Hat Enterprise Linux Server Optional AUS (v. 7.6)Fixed RHSA-2022:7171
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2023:4022
Red Hat Enterprise Linux Server Optional E4S (v. 7.6)Fixed RHSA-2022:7171
Red Hat Enterprise Linux Server Optional E4S (v. 7.7)Fixed RHSA-2023:4022
Red Hat Enterprise Linux Server Optional TUS (v. 7.6)Fixed RHSA-2022:7171
Red Hat Enterprise Linux Server Optional TUS (v. 7.7)Fixed RHSA-2023:4022
Red Hat Enterprise Linux Server TUS (v. 7.6)Fixed RHSA-2022:7171
Red Hat Enterprise Linux Server TUS (v. 7.7)Fixed RHSA-2023:4022
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:7337
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2022:7338
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2022:7338
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2022:6551, RHSA-2022:7110
Not affected: 2 products
  • RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-2588

References

Exploit 1

Patch 1

Advisory 12

Other 1

  • 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