---
id: CVE-2026-72373
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  afs: Fix missing NULL pointer check in afs_break_some_callbacks()

  Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu()
  returned NULL (e.g
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  afs: Fix missing NULL pointer check in afs_break_some_callbacks()

  Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu()
  returned NULL (e.g. the spe…
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'
cwe:
  - CWE-476
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:17:25.620'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72373'
references:
  - url: 'https://git.kernel.org/stable/c/5492799ec5d27be3bd454dcaf046bc7054f637ae'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/794a01110390c1b76f59ece773fb0fbfd89c6f5c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a99a617701186dc68c7b330d35fc2253f48e2ab2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e3e59ff22a0de01ed0cf3a3e25558811abc3b70a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72373.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-72373'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2516245'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-72373'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72373'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2026081516-CVE-2026-72373-c10b@gregkh/T
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.0063
epssPercentile: 0.49975
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-16T18:48:08.172358Z'
scores:
  nvd: 7.5
  vendor: 5.5
  cna: 7.5
ingestedAt: '2026-10-16T19:46:24.402Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

afs: Fix missing NULL pointer check in afs_break_some_callbacks()

Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu()
returned NULL (e.g. the specified volume is unknown).

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72373.json)