---
id: CVE-2026-80974
title: 'mfd: sm501: Fix potential memory leaks during remove'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mfd: sm501: Fix potential memory leaks during remove

  The memory allocated for struct sm501_devdata in sm501_pci_probe() and
  sm501_plat_probe() is not freed by the corr…
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: Linux
product: Linux
affected:
  - >-
    Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e <
    b78e34ed7e97763d493d95a5c1edefffbfd2f356
  - >-
    Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e <
    fcc6c3b11d73459e0d55b27c98cc56d59fef4d82
  - >-
    Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e <
    94ca4f040ba489db2d4b66e9d1ee91b4f9a00534
  - >-
    Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e <
    c8be3a076a59ec793fb2e4bdb830a709aaea9cce
  - >-
    Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e <
    83feedd9d83c0c5199f98c72df0a6196b4aefb4d
  - Linux 2.6.21
published: '2026-09-11'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T12:47:19.942Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80974'
references:
  - url: 'https://git.kernel.org/stable/c/b78e34ed7e97763d493d95a5c1edefffbfd2f356'
  - 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'
  - 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
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00206
epssPercentile: 0.1059
ingestedAt: '2026-09-14T00:35:28.531Z'
---

## Overview

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

mfd: sm501: Fix potential memory leaks during remove

The memory allocated for struct sm501_devdata in sm501_pci_probe() and
sm501_plat_probe() is not freed by the corresponding remove functions
sm501_pci_remove() and sm501_plat_remove(). Fix that by adding a call to
kfree().

## Affected

- `Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e < b78e34ed7e97763d493d95a5c1edefffbfd2f356`
- `Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e < fcc6c3b11d73459e0d55b27c98cc56d59fef4d82`
- `Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e < 94ca4f040ba489db2d4b66e9d1ee91b4f9a00534`
- `Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e < c8be3a076a59ec793fb2e4bdb830a709aaea9cce`
- `Linux >= b6d6454fdb66f3829af8b92ab06825b6060fdf7e < 83feedd9d83c0c5199f98c72df0a6196b4aefb4d`
- `Linux 2.6.21`

## Remediation

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

## 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)