Linux Kernel up to 6.18.32/7.0.9 clk ccu_mix_trigger_fc denial of service

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 6.18.32/7.0.9. Impacted is the function ccu_mix_trigger_fc of the component clk. Executing a manipulation can lead to denial of service. This vulnerability appears as CVE-2026-53019. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.18.32/7.0.9 and classified as critical. This vulnerability affects the function ccu_mix_trigger_fc of the component clk. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: ccu_mix: fix inverted condition in ccu_mix_trigger_fc() Fix inverted condition that skips frequency change trigger, causing kernel panics during cpufreq scaling.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-53019 since 06/09/2026. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 323432 (Linux Distros Unpatched Vulnerability : CVE-2026-53019), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.18.33 or 7.0.10 eliminates this vulnerability. Applying the patch da99d0302d3ccccfb13c69e663bf8eae698b9562/16dfbc4e95c46dd9c79cb8d550c7f267d4a79b91/54e97360b44bed6b4399dd3be3d65f392df940fa is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (323432) and CERT Bund (WID-SEC-2026-2077). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Open Source Linux Kernel

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.18.0
• 6.18.1
• 6.18.2
• 6.18.3
• 6.18.4
• 6.18.5
• 6.18.6
• 6.18.7
• 6.18.8
• 6.18.9
• 6.18.10
• 6.18.11
• 6.18.12
• 6.18.13
• 6.18.14
• 6.18.15
• 6.18.16
• 6.18.17
• 6.18.18
• 6.18.19
• 6.18.20
• 6.18.21
• 6.18.22
• 6.18.23
• 6.18.24
• 6.18.25
• 6.18.26
• 6.18.27
• 6.18.28
• 6.18.29
• 6.18.30
• 6.18.31
• 6.18.32
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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