---
id: CVE-2026-63879
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu: fix amdgpu_hmm_range_get_pages

  The notifier sequence must only be read once or otherwise we could work
  with invalid pages.

  While at it also fix the coding…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amdgpu: fix amdgpu_hmm_range_get_pages

  The notifier sequence must only be read once or otherwise we could work
  with invalid pages.

  While at it also fix the coding…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc <
    fa34d3e14cb763b50702e8a0f7d4cfd877a73ab9
  - >-
    Linux >= c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc <
    2fd24407457a6b181ba827705678da70e528dcd0
  - >-
    Linux >= c1420a5dd4dd2a1ffc86965ad1c6f439afb130bc <
    962d684b5dc0741dcd93485d41b450de402d5592
  - Linux 6.2
published: '2026-07-19'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:17:37.780'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63879'
references:
  - url: 'https://git.kernel.org/stable/c/2fd24407457a6b181ba827705678da70e528dcd0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/962d684b5dc0741dcd93485d41b450de402d5592'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fa34d3e14cb763b50702e8a0f7d4cfd877a73ab9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00172
epssPercentile: 0.06173
ingestedAt: '2026-10-15T11:00:41.698Z'
---

## Overview

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

drm/amdgpu: fix amdgpu_hmm_range_get_pages

The notifier sequence must only be read once or otherwise we could work
with invalid pages.

While at it also fix the coding style, e.g. drop the pre-initialized
return value and use the common define for 2G range.

(cherry picked from commit c08972f555945cda57b0adb72272a37910153390)

## Remediation

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