CVE-2022-50418

Service interruption via unreleased MHI controller memory

Published Sep 18, 2025 · Updated Sep 18, 2025

Memory leak in the ath11k MHI driver in Linux before 5.19.17, 6.0.3, or 6.1 allows local users to interrupt service. ath11k_mhi_register() returns after ath11k_mhi_read_addr_from_dt() fails without releasing the controller allocated by mhi_alloc_controller(). The flaw requires an ath11k device and the MHI address-read failure path; each failed registration leaks its allocated controller memory.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the ath11k MHI driver in Linux before 5.19.17, 6.0.3, or 6.1 allows local users to interrupt service. ath11k_mhi_register() returns after ath11k_mhi_read_addr_from_dt() fails without releasing the controller allocated by mhi_alloc_controller(). The flaw requires an ath11k device and the MHI address-read failure path; each failed registration leaks its allocated controller memory.

The record

CVE
CVE-2022-50418
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <015ced9eb63b8b19cb725a1d592d150b60494ced
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <43e7c3505ec70db3d3c6458824d5fa40f62e3e7b
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <015ced9eb63b8b19cb725a1d592d150b60494ced; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <43e7c3505ec70db3d3c6458824d5fa40f62e3e7b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <72ef896e80b6ec7cdc1dd42577045f8e7c9c32b3

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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