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

ASoC: mediatek: mt8183: Release reserved memory on cleanup

The MT8183 AFE probe can assign reserved memory with
of_reserved_mem_device_init(), but the assignment is never released on
driver removal or later probe failures.

Register a devm cleanup action so the reserved memory assignment is
released consistently, matching newer Mediatek AFE drivers.
Published: 2026-08-15
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The MT8183 AFE driver reserves memory when probed but never releases it on removal or probe failure. Each such event creates a memory leak that can accumulate over time. The leak may eventually exhaust reserved memory, destabilizing the kernel and potentially causing a denial of service. The flaw is a memory management bug (CWE-772) that does not provide direct code execution but can degrade system availability.

Affected Systems

All Linux kernel builds that include the Mediatek MT8183 AFE driver without the patch are affected. The CPE indicates the entire linux_kernel product, and no specific version is listed, meaning any kernel version containing the vulnerable driver code is at risk.

Risk and Exploitability

The CVSS score of 5.5 indicates moderate risk, while the EPSS of less than 1% suggests a low likelihood of exploitation. The vulnerability is not listed in CISA KEV. Based on the description, the likely attack vector is local kernel manipulation that allows repeated probe or module unloading, which could be exploited to cause memory exhaustion and a denial of service. No remote exploitation pathway is described.

Generated by OpenCVE AI on August 22, 2026 at 08:45 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Install a Linux kernel version that contains the patched MT8183 driver, which registers a devm cleanup action to release reserved memory consistently.
  • If no patch is available, blacklist or disable the Mediatek MT8183 AFE driver to prevent the faulty allocation from occurring.
  • Continuously monitor kernel memory usage and system stability for abnormal growth patterns that may indicate a residual leak.

Generated by OpenCVE AI on August 22, 2026 at 08:45 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 19 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-772
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8183: Release reserved memory on cleanup The MT8183 AFE probe can assign reserved memory with of_reserved_mem_device_init(), but the assignment is never released on driver removal or later probe failures. Register a devm cleanup action so the reserved memory assignment is released consistently, matching newer Mediatek AFE drivers.
Title ASoC: mediatek: mt8183: Release reserved memory on cleanup
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-17T05:11:16.853Z

Reserved: 2026-08-09T03:40:39.915Z

Link: CVE-2026-72258

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:21:53.747

Modified: 2026-08-17T06:18:28.133

Link: CVE-2026-72258

cve-icon Redhat

Severity : Low

Publid Date: 2026-08-15T00:00:00Z

Links: CVE-2026-72258 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-22T09:00:10Z

Weaknesses
  • CWE-772

    Missing Release of Resource after Effective Lifetime