What’s Vulnerable › Vulnerabilities

CVE-2026-90147: clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

Description

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/20260706-clk-type-state-v5-3-67c5f326a16c@collabora.com

Affected products

• Linux kernel: 6.12 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d4d262c1664365e17e0a5ba2ab79f4db484b44e
• https://git.kernel.org/stable/c/647157fecb42b72d930e7b7d0bfbc5f2db9a858a
• https://git.kernel.org/stable/c/9a365f41fe0f227ef5a269e240233bd0bffc66c9
• https://git.kernel.org/stable/c/9d4843f1051259854f724e9cdc5b9eac56327037

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