---
id: CVE-2026-89437
title: >-
  kernel: platform/x86: int1092: Fix potential memory leak in sar_probe()
  (CVE-2026-89437)
summary: >-
  A flaw was found in the Linux kernel. The `sar_probe()` function, specifically
  in its error handling paths, fails to free memory allocated for
  `device_mode_info` by the `parse_package()` function, which is called by
  `sar_get_data()`. This …
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'
cvssSource: vendor
cwe: CWE-772
vendor: Red Hat
product: Linux
affected:
  - >-
    Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 <
    08dab7065f9369dd0a0aa740071bcd884c4848b0
  - >-
    Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 <
    582b82e573a059be9319bb16b84c45d0ef66f471
  - >-
    Linux >= dcfbd31ef4bcf6ceb373911faa4a5299e0547702 <
    30c906cff490c3601ee9ff110fe8115fabe75fd4
  - Linux 5.15
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:28:25+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89437'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532383'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89437'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89437'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89437.mbox
  - url: 'https://git.kernel.org/stable/c/08dab7065f9369dd0a0aa740071bcd884c4848b0'
  - url: 'https://git.kernel.org/stable/c/582b82e573a059be9319bb16b84c45d0ef66f471'
  - url: 'https://git.kernel.org/stable/c/30c906cff490c3601ee9ff110fe8115fabe75fd4'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00166
epssPercentile: 0.06253
ingestedAt: '2026-09-14T15:23:07.454Z'
---

## Overview

A flaw was found in the Linux kernel. The `sar_probe()` function, specifically in its error handling paths, fails to free memory allocated for `device_mode_info` by the `parse_package()` function, which is called by `sar_get_data()`. This oversight leads to a memory leak. Repeated occurrences of this flaw could exhaust system memory, potentially resulting in a Denial of Service (DoS) for the affected system.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89437.json)

**kernel: platform/x86: int1092: Fix potential memory leak in sar_probe()** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.