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TI-2022-25500 Aliases CVE-2022-50007GHSA-g8hq-q89f-265v

xfrm: fix refcount leak in __xfrm_policy_check()

Priority LOW 24Published · 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: 5 fixed, 4 without a fix

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

Summary

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix refcount leak in __xfrm_policy_check() The issue happens on an error path in __xfrm_policy_check(). When the fetching process of the object `pols[1]` fails, the function simply returns 0, forgetting to decrement the reference count of `pols[0]`, which is incremented earlier by either xfrm_sk_policy_lookup() or xfrm_policy_lookup(). This may result in memory leaks. Fix it by decreasing the reference count of `pols[0]` in that path.

Why it matters now

EPSS 0.00253 16th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.327, 4.14.292, 4.19.257 +5Red Hat: 2 advisoriesRed Hat: 5 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.19 and later4.9.327, 4.14.292, 4.19.257, 5.4.212, 5.10.140, 5.15.64, 5.19.6, 6.0Patch availableCNA
  • Linux VendorLinux Affected 2.6.19 and later Fixed in 4.9.327, 4.14.292, 4.19.257, 5.4.212, 5.10.140, 5.15.64, 5.19.6, 6.0 Patch available CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.20 to before 4.9.327; 4.10 to before 4.14.292; 4.15 to before 4.19.257; 4.20 to before 5.4.212; 5.5 to before 5.10.140; 5.11 to before 5.15.64; 5.16 to before 5.19.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:-:*:*:*:*:*:*2.6.19VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:rc2:*:*:*:*:*:*2.6.19 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:rc3:*:*:*:*:*:*2.6.19 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:rc4:*:*:*:*:*:*2.6.19 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:rc5:*:*:*:*:*:*2.6.19 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:2.6.19:rc6:*:*:*:*:*:*2.6.19 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*6.0 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*6.0 rc2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.20 to before 4.9.327; 4.10 to before 4.14.292; 4.15 to before 4.19.257; 4.20 to before 5.4.212; 5.5 to before 5.10.140; 5.11 to before 5.15.64; 5.16 to before 5.19.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:-:*:*:*:*:*:* Versions 2.6.19 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:rc2:*:*:*:*:*:* Versions 2.6.19 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:rc3:*:*:*:*:*:* Versions 2.6.19 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:rc4:*:*:*:*:*:* Versions 2.6.19 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:rc5:*:*:*:*:*:* Versions 2.6.19 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:2.6.19:rc6:*:*:*:*:*:* Versions 2.6.19 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:* Versions 6.0 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:* Versions 6.0 rc2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.9.327, 4.14.292, 4.19.257, 5.4.212, 5.10.140, 5.15.64, 5.19.6, 6.0

Red Hat 2 advisories

  • RHSA-2023:2951 Released 2023-05-16 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-477.10.1.el8_8, kernel-4.18.0-477.10.1.el8_8, kernel-abi-stablelists-4.18.0-477.10.1.el8_8 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-477.10.1.el8_8
  • RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:2951
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2023:2951
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2023:2458
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-50007
  2. 2026-10-03 Alias added: GHSA-g8hq-q89f-265v

References

Patch 8

  • 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