---
id: CVE-2022-50110
title: 'watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource

  Unlike release_mem_region(), a call to release_resource() does not
  free the resource, so it has to be fre…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= b4c0f1600df43245c8c3425dbd9426fdfba6c4b2 <
    84ddf527f90755beec6b55ce2e31331f5ccd4e37
  - >-
    Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 <
    3a1becb1f13268ef58f19190608a7c742fb6fcf5
  - >-
    Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 <
    ee1fb8f75abe361413913e3a6e93c8c0a4d83cd9
  - >-
    Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 <
    c6d9c0798ed366a09a9e53d71edcd2266e34a6eb
  - Linux 15b5d74600b98adf396d416ed59e0d43726f2671
  - Linux >= 5.15.42 < 5.15.61
  - Linux >= 5.17.10 < 5.18
  - Linux 5.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T19:54:43.530417Z'
published: '2025-06-18'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:00:17.488Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2022-50110'
references:
  - url: 'https://git.kernel.org/stable/c/84ddf527f90755beec6b55ce2e31331f5ccd4e37'
  - url: 'https://git.kernel.org/stable/c/3a1becb1f13268ef58f19190608a7c742fb6fcf5'
  - url: 'https://git.kernel.org/stable/c/ee1fb8f75abe361413913e3a6e93c8c0a4d83cd9'
  - url: 'https://git.kernel.org/stable/c/c6d9c0798ed366a09a9e53d71edcd2266e34a6eb'
tags:
  - cve.org
epss: 0.00245
epssPercentile: 0.15841
ingestedAt: '2026-11-05T22:38:31.670Z'
---

## Overview

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

watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource

Unlike release_mem_region(), a call to release_resource() does not
free the resource, so it has to be freed explicitly to avoid a memory
leak.

## Affected

- `Linux >= b4c0f1600df43245c8c3425dbd9426fdfba6c4b2 < 84ddf527f90755beec6b55ce2e31331f5ccd4e37`
- `Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 < 3a1becb1f13268ef58f19190608a7c742fb6fcf5`
- `Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 < ee1fb8f75abe361413913e3a6e93c8c0a4d83cd9`
- `Linux >= 0578fff4aae5bce3f09875f58e68e9ffbab8daf5 < c6d9c0798ed366a09a9e53d71edcd2266e34a6eb`
- `Linux 15b5d74600b98adf396d416ed59e0d43726f2671`
- `Linux >= 5.15.42 < 5.15.61`
- `Linux >= 5.17.10 < 5.18`
- `Linux 5.18`

## Remediation

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