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

media: mtk-mdp: Fix a reference leak bug in mtk_mdp_remove()

In mtk_mdp_probe(), vpu_get_plat_device() increases the reference
count of the returned platform device. Add platform_device_put()
to prevent reference leak.
Published: 2026-05-06
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw is a reference‑count leak in the Linux kernel media driver for MediaTek chipset (mtk-mdp). During device probing, the driver obtains a reference to a platform device but never releases it when the device is removed. This results in a gradual increase in kernel memory usage; repeated probe and removal sequences can exhaust available memory or destabilize the kernel, potentially leading to a denial of service. The weakness is classified as a double reference count issue (CWE‑911). The vulnerability does not provide direct code execution or privilege escalation.

Affected Systems

The vulnerability affects any Linux system that includes the generic Linux kernel with the mtk-mdp media driver enabled. Because no specific kernel version range was provided, all kernel builds prior to the patch that fixes the mtk_mdp_remove reference‑count bug may be impacted.

Risk and Exploitability

The CVSS score of 5.5 indicates moderate severity, and combined with the EPSS score of less than 1%, the likelihood of exploitation remains low. The vulnerability is not listed in CISA’s KEV catalog, indicating it has not yet been widely exploited. Based on the description, it is inferred that the attack vector requires local or kernel‑level interaction to trigger repeated probe and removal cycles, which makes the risk low to moderate for non‑privileged users. Immediate remediation by updating the kernel mitigates the potential for memory exhaustion and system instability.

Generated by OpenCVE AI on May 8, 2026 at 21:28 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Linux kernel to a release that contains the mtk_mdp_remove reference‑count fix, such as the latest stable kernel or apply the specific patch set referenced in the advisory.
  • If a kernel upgrade is not feasible, disable the mtk-mdp driver by blacklisting it or unloading it from running systems to prevent the reference leak from occurring.
  • Reboot the system or restart the kernel to ensure the driver is fully unloaded and that the vulnerable code path is no longer active.

Generated by OpenCVE AI on May 8, 2026 at 21:28 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4606-1 linux security update
History

Fri, 08 May 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses NVD-CWE-Other
Metrics 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'}


Thu, 07 May 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-772

Thu, 07 May 2026 12:15:00 +0000


Wed, 06 May 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-772

Wed, 06 May 2026 12:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: media: mtk-mdp: Fix a reference leak bug in mtk_mdp_remove() In mtk_mdp_probe(), vpu_get_plat_device() increases the reference count of the returned platform device. Add platform_device_put() to prevent reference leak.
Title media: mtk-mdp: Fix a reference leak bug in mtk_mdp_remove()
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: 2026-05-11T22:21:18.648Z

Reserved: 2026-05-01T14:12:55.997Z

Link: CVE-2026-43270

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-06T12:16:48.190

Modified: 2026-05-08T20:00:20.540

Link: CVE-2026-43270

cve-icon Redhat

Severity :

Publid Date: 2026-05-06T00:00:00Z

Links: CVE-2026-43270 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T21:30:05Z

Weaknesses