CVE-2026-43270
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Reference Leak in Linux Kernel MTK MDP Driver

Publication date: 2026-05-06

Last updated on: 2026-05-08

Assigner: kernel.org

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.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-08
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-14
NVD
CVE-2026-43270
EUVD
EUVD-2026-27667
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 6.2 (inc) to 6.6.128 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.75 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.16 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.6 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.202 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.165 (exc)
linux linux_kernel From 4.10 (inc) to 5.10.252 (exc)
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a reference leak bug in the Linux kernel's media component, specifically in the mtk-mdp driver. The issue occurs in the mtk_mdp_probe() function where the call to vpu_get_plat_device() increases the reference count of a platform device but does not properly decrease it later. The fix involves adding a call to platform_device_put() in mtk_mdp_remove() to prevent the reference leak.

Impact Analysis

A reference leak in the kernel can lead to resource exhaustion over time, potentially causing system instability or degraded performance. If the reference count is not properly managed, it may prevent the release of resources associated with the platform device, which could eventually impact system reliability.

Mitigation Strategies

The vulnerability is a reference leak in the Linux kernel's mtk-mdp driver. To mitigate this issue, you should update your Linux kernel to a version where the fix has been applied, specifically where platform_device_put() is added in mtk_mdp_remove() to prevent the reference leak.

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