---
id: CVE-2022-36946
title: >-
  nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through
  5.18.14 allows remote attackers to cause a denial of service (panic) because,
  in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an
  skb_p…
summary: >-
  nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through
  5.18.14 allows remote attackers to cause a denial of service (panic) because,
  in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an
  skb_p…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: netapp
product: active_iq_unified_manager
affected:
  - 'linux_kernel >= 2.6.14, < 4.9.326'
  - 'linux_kernel >= 4.10, < 4.14.291'
  - 'linux_kernel >= 4.15, < 4.19.255'
  - 'linux_kernel >= 4.20, < 5.4.209'
  - 'linux_kernel >= 5.5, < 5.10.135'
  - 'linux_kernel >= 5.11, < 5.15.59'
  - 'linux_kernel >= 5.16, < 5.18.16'
  - debian_linux = 10.0
  - debian_linux = 11.0
  - active_iq_unified_manager
  - solidfire_&_hci_management_node
  - solidfire_&_hci_storage_node
  - solidfire_enterprise_sds
  - hci_compute_node
patched:
  - linux_kernel 5.18.16
published: '2022-07-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:17:03.400'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-36946'
references:
  - url: >-
      https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
    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://marc.info/?l=netfilter-devel&m=165883202007292&w=2'
    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/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
    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://marc.info/?l=netfilter-devel&m=165883202007292&w=2'
    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-561322.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-942865.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - exploit-available
epss: 0.0774
epssPercentile: 0.94546
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/Pwnzer0tt1/CVE-2022-36946'
    - 'https://github.com/Satheesh575555/linux-4.19.72_CVE-2022-36946'
  checkedAt: '2026-10-14T18:48:13.825Z'
exploitAvailable: true
ingestedAt: '2026-10-14T18:47:39.267Z'
---

## Overview

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.

## Affected

- `linux_kernel >= 2.6.14, < 4.9.326`
- `linux_kernel >= 4.10, < 4.14.291`
- `linux_kernel >= 4.15, < 4.19.255`
- `linux_kernel >= 4.20, < 5.4.209`
- `linux_kernel >= 5.5, < 5.10.135`
- `linux_kernel >= 5.11, < 5.15.59`
- `linux_kernel >= 5.16, < 5.18.16`
- `debian_linux = 10.0`
- `debian_linux = 11.0`
- `active_iq_unified_manager`
- `solidfire_&_hci_management_node`
- `solidfire_&_hci_storage_node`
- `solidfire_enterprise_sds`
- `hci_compute_node`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.18.16`