CVE Catalog

CVE-2026-90147

Low risk· EPSS 9%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.20%

9th percentile - higher than 9% of all known CVEs

Summary

In the Linux kernel clk/devres subsystem, devm_clk_get_optional_enabled_with_rate() registers its cleanup action before setting the clock rate. If setting the rate fails, it attempts to disable and unprepare a clock that was never enabled.

Risk Assessment

This can lead to clock resource management errors and instability in drivers using this interface, potentially causing device failures or misbehavior.

Recommendation

Update the Linux kernel to a version with the fix that registers the cleanup action only after successfully preparing and enabling the clock.

Related vulnerabilities

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate() devm_clk_get_optional_enabled_with_rate() registers its cleanup action before setting the clock rate. If setting the rate fails, it attempts to disable and unprepare a clock that was never enabled. This issue was spotted while reviewing "rust: clk: add devres-managed clks" [1]. Register the cleanup action only after successfully preparing and enabling the clock. [1]: https://lore.kernel.org/rust-for-linux/[email protected]

Vulnerability data from NVD (NIST) · CISA KEV · EPSS