---
id: CVE-2026-80974
title: 'kernel: mfd: sm501: Fix potential memory leaks during remove (CVE-2026-80974)'
summary: >-
  A flaw was found in the `mfd: sm501` component of the Linux kernel. This
  vulnerability arises from a failure to properly free allocated memory for
  `struct sm501_devdata` during the device removal process. A local attacker
  could potentially…
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: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - enterprise_linux 8
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T18:43:22+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80974'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532469'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80974'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80974'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80974.mbox
  - url: 'https://git.kernel.org/stable/c/fcc6c3b11d73459e0d55b27c98cc56d59fef4d82'
  - url: 'https://git.kernel.org/stable/c/94ca4f040ba489db2d4b66e9d1ee91b4f9a00534'
  - url: 'https://git.kernel.org/stable/c/c8be3a076a59ec793fb2e4bdb830a709aaea9cce'
  - url: 'https://git.kernel.org/stable/c/83feedd9d83c0c5199f98c72df0a6196b4aefb4d'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.002
epssPercentile: 0.10114
ingestedAt: '2026-09-14T00:35:28.531Z'
---

## Overview

A flaw was found in the `mfd: sm501` component of the Linux kernel. This vulnerability arises from a failure to properly free allocated memory for `struct sm501_devdata` during the device removal process. A local attacker could potentially exploit this memory leak, which may lead to a denial of service (DoS) due to resource exhaustion.

## Vendor advisories

- **Red Hat VEX** · Low · 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 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80974.json)

**kernel: mfd: sm501: Fix potential memory leaks during remove** — rated Low by Red Hat. Released 2026-09-11, updated 2026-09-14.

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

No fix planned:

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

## Remediation

Out of support scope