---
id: CVE-2022-50418
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register()

  mhi_alloc_controller() allocates a memory space for mhi_ctrl
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register()

  mhi_alloc_controller() allocates a memory space for mhi_ctrl. When gets
  some error, mhi_ctrl shou…
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'
cwe:
  - CWE-401
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.6, < 5.19.17'
  - 'linux_kernel >= 6.0, < 6.0.3'
patched:
  - linux_kernel 6.0.3
published: '2025-09-18'
updated: '2026-08-15'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-50418'
references:
  - url: 'https://git.kernel.org/stable/c/015ced9eb63b8b19cb725a1d592d150b60494ced'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/43e7c3505ec70db3d3c6458824d5fa40f62e3e7b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00154
epssPercentile: 0.04891
ingestedAt: '2026-08-15T13:26:45.726Z'
---

## Overview

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

wifi: ath11k: mhi: fix potential memory leak in ath11k_mhi_register()

mhi_alloc_controller() allocates a memory space for mhi_ctrl. When gets
some error, mhi_ctrl should be freed with mhi_free_controller(). But
when ath11k_mhi_read_addr_from_dt() fails, the function returns without
calling mhi_free_controller(), which will lead to a memory leak.

We can fix it by calling mhi_free_controller() when
ath11k_mhi_read_addr_from_dt() fails.

## Affected

- `linux_kernel >= 5.6, < 5.19.17`
- `linux_kernel >= 6.0, < 6.0.3`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.0.3`