---
id: CVE-2026-74327
title: 'vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

  find_vm_area() can return NULL if the given address is not a valid vmalloc
  area.  Check the return valu…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    c741485fa09bf5900f76d95424d86316d0a00331
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    b86f98e53df4f5d57259817b8e9a00167b78bae6
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    af71c2b88ccae44418e273bdfe0c96be8515151e
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    a1bca6b69bd934e2731d009e645038e05d57ce59
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    bbd664b7c77f6488cd5652231c0fe01d069a73ea
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    55a44f5259e6a5f1d5b11cb0e19e943c9cc62280
  - >-
    Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae <
    c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8
  - Linux 5.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:56:05.518779Z'
published: '2026-08-15'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T17:05:43.892Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-74327'
references:
  - url: 'https://git.kernel.org/stable/c/c741485fa09bf5900f76d95424d86316d0a00331'
  - url: 'https://git.kernel.org/stable/c/b86f98e53df4f5d57259817b8e9a00167b78bae6'
  - url: 'https://git.kernel.org/stable/c/af71c2b88ccae44418e273bdfe0c96be8515151e'
  - url: 'https://git.kernel.org/stable/c/a1bca6b69bd934e2731d009e645038e05d57ce59'
  - url: 'https://git.kernel.org/stable/c/bbd664b7c77f6488cd5652231c0fe01d069a73ea'
  - url: 'https://git.kernel.org/stable/c/55a44f5259e6a5f1d5b11cb0e19e943c9cc62280'
  - url: 'https://git.kernel.org/stable/c/c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8'
tags:
  - cve.org
epss: 0.00215
epssPercentile: 0.11893
ingestedAt: '2026-11-06T18:00:12.563Z'
---

## Overview

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

vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()

find_vm_area() can return NULL if the given address is not a valid vmalloc
area.  Check the return value before dereferencing it to avoid a kernel
crash.

## Affected

- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < c741485fa09bf5900f76d95424d86316d0a00331`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < b86f98e53df4f5d57259817b8e9a00167b78bae6`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < af71c2b88ccae44418e273bdfe0c96be8515151e`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < a1bca6b69bd934e2731d009e645038e05d57ce59`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < bbd664b7c77f6488cd5652231c0fe01d069a73ea`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < 55a44f5259e6a5f1d5b11cb0e19e943c9cc62280`
- `Linux >= 121e6f3258fe393e22c36f61a319be8a4f2c05ae < c55dd3b46c1208d6d2ea737a8aefef4aa4c70cb8`
- `Linux 5.13`

## Remediation

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