---
id: CVE-2022-42328
title: >-
  Guests can trigger deadlock in Linux netback driver T[his CNA information
  record relates to multiple CVEs; the text explains which
  aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392
  introduced another issue which mig…
summary: >-
  Guests can trigger deadlock in Linux netback driver T[his CNA information
  record relates to multiple CVEs; the text explains which
  aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392
  introduced another issue which mig…
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'
cwe:
  - CWE-667
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 6.0
  - debian_linux = 10.0
patched:
  - linux_kernel 6.0
published: '2022-12-07'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:16:50.057'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-42328'
references:
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/08/2'
    label: security@xen.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/08/3'
    label: security@xen.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/09/2'
    label: security@xen.org
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html'
    label: security@xen.org
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html'
    label: security@xen.org
  - url: 'https://xenbits.xenproject.org/xsa/advisory-424.txt'
    label: security@xen.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/08/2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/08/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2022/12/09/2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://xenbits.xenproject.org/xsa/advisory-424.txt'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-625862.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
  - cve.org
epss: 0.00224
epssPercentile: 0.12988
ingestedAt: '2026-10-14T19:49:57.526Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2025-04-23T14:25:41.282586Z'
scores:
  nvd: 5.5
  adp: 6.2
---

## Overview

Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329).

## Affected

- `linux_kernel < 6.0`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.0`