---
id: CVE-2022-36879
title: An issue was discovered in the Linux kernel through 5.18.14
summary: >-
  An issue was discovered in the Linux kernel through 5.18.14.
  xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be
  dropped twice.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: netapp
product: active_iq_unified_manager
affected:
  - linux_kernel <= 5.18.14
  - debian_linux = 10.0
  - debian_linux = 11.0
  - a700s_firmware
  - active_iq_unified_manager
  - 'e-series_santricity_os_controller >= 11.0, <= 11.50.2'
  - hci_bootstrap_os
  - aff_8300_firmware
  - fas_8300_firmware
  - aff_8700_firmware
  - fas_8700_firmware
  - aff_a400_firmware
  - fas_a400_firmware
  - aff_a250_firmware
  - fas_a250_firmware
  - fas_500f_firmware
  - aff_500f_firmware
  - h300s_firmware
  - h500s_firmware
  - h700s_firmware
  - h410s_firmware
  - h410c_firmware
  - h610c_firmware
  - h610s_firmware
  - h615c_firmware
published: '2022-07-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:17:03.137'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-36879'
references:
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901
    label: cve@mitre.org
  - url: >-
      https://github.com/torvalds/linux/commit/f85daf0e725358be78dfd208dea5fd665d8cb901
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html'
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html'
    label: cve@mitre.org
  - url: 'https://security.netapp.com/advisory/ntap-20220901-0007/'
    label: cve@mitre.org
  - url: 'https://www.debian.org/security/2022/dsa-5207'
    label: cve@mitre.org
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/torvalds/linux/commit/f85daf0e725358be78dfd208dea5fd665d8cb901
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20220901-0007/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2022/dsa-5207'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-419740.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
epss: 0.00319
epssPercentile: 0.23204
ingestedAt: '2026-10-14T18:47:39.266Z'
---

## Overview

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

## Affected

- `linux_kernel <= 5.18.14`
- `debian_linux = 10.0`
- `debian_linux = 11.0`
- `a700s_firmware`
- `active_iq_unified_manager`
- `e-series_santricity_os_controller >= 11.0, <= 11.50.2`
- `hci_bootstrap_os`
- `aff_8300_firmware`
- `fas_8300_firmware`
- `aff_8700_firmware`
- `fas_8700_firmware`
- `aff_a400_firmware`
- `fas_a400_firmware`
- `aff_a250_firmware`
- `fas_a250_firmware`
- `fas_500f_firmware`
- `aff_500f_firmware`
- `h300s_firmware`
- `h500s_firmware`
- `h700s_firmware`
- `h410s_firmware`
- `h410c_firmware`
- `h610c_firmware`
- `h610s_firmware`
- `h615c_firmware`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.