Linux Kernel up to 7.2.5 leds lp5860_device_init race condition

Summaryinfo

A vulnerability classified as very critical was found in Linux Kernel up to 7.2.5. This issue affects the function lp5860_device_init of the component leds. Such manipulation leads to race condition. This vulnerability is documented as CVE-2026-93171. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.5 and classified as very critical. Affected by this issue is the function lp5860_device_init of the component leds. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: leds: lp5860: Fix a potential double-unlock In lp5860_device_init(), if lp5860_init_dt() fails, an already unlocked mutex is unlocked another time. Slightly rework how the lock is taken/released to avoid this potential double unlock.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-93171 since 09/17/2026. The exploitation is known to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/18/2026).

Upgrading to version 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch 989f3d01fc1961d0850b343e0b4e3973c082d82e/10a5a70c02277a1c12999b669a1bd1922558338a is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5

License

• open-source

Website

• Vendor: https://www.kernel.org/

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