---
id: CVE-2026-72244
title: 'gpu/buddy: bail out of try_harder when alignment cannot be honoured'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  gpu/buddy: bail out of try_harder when alignment cannot be honoured

  The try_harder contiguous fallback could return a range whose start
  offset did not match the caller…
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'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 <
    4289531106ee175a6eb45db7d4f2734d1dae9887
  - >-
    Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 <
    7185c5262435b93e5eeffa647008992256b9c51a
  - >-
    Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 <
    419d7d9306491f3e0e417cf794844c73cabee090
  - >-
    Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 <
    56bc6384314fb9ae98975fb2af8b143097ede3dc
  - Linux 6.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:44:56.344658Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:55:12.711Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-72244'
references:
  - url: 'https://git.kernel.org/stable/c/4289531106ee175a6eb45db7d4f2734d1dae9887'
  - url: 'https://git.kernel.org/stable/c/7185c5262435b93e5eeffa647008992256b9c51a'
  - url: 'https://git.kernel.org/stable/c/419d7d9306491f3e0e417cf794844c73cabee090'
  - url: 'https://git.kernel.org/stable/c/56bc6384314fb9ae98975fb2af8b143097ede3dc'
tags:
  - cve.org
epss: 0.00163
epssPercentile: 0.05187
ingestedAt: '2026-10-16T19:46:24.417Z'
---

## Overview

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

gpu/buddy: bail out of try_harder when alignment cannot be honoured

The try_harder contiguous fallback could return a range whose start
offset did not match the caller's min_block_size. When a candidate's
start is misaligned, realign it: free the misaligned run and reallocate
exactly @size at the next lower min_block_size boundary. This keeps the
returned size unchanged with no surplus to trim, and rejects the request
only when no aligned candidate fits.

v2: align misaligned candidates down to min_block_size instead of
    bailing out, for both the RHS and LHS paths (Matthew).

## Affected

- `Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 < 4289531106ee175a6eb45db7d4f2734d1dae9887`
- `Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 < 7185c5262435b93e5eeffa647008992256b9c51a`
- `Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 < 419d7d9306491f3e0e417cf794844c73cabee090`
- `Linux >= 0a1844bf0b532d84324453374ad6845f64066c28 < 56bc6384314fb9ae98975fb2af8b143097ede3dc`
- `Linux 6.7`

## Remediation

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