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

Unknown severity · Source severity not reportedCVE-2026-90147

clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate()

Answer in brief

CVE-2026-90147 records a Unknown severity vulnerability in clk: devres: fix cleanup in devm_clk_get_optional_enabled_with_rate(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=9934a1bd45b2b03f6d1204a6ae2780d3b009799f <9a365f41fe0f227ef5a269e240233bd0bffc66c9 \|\| >=9934a1bd45b2b03f6d1204a6ae2780d3b009799f <9d4843f1051259854f724e9cdc5b9eac56327037 \|\| >=9934a1bd45b2b03f6d1204a6ae2780d3b009799f <647157fecb42b72d930e7b7d0bfbc5f2db9a858a \|\| >=9934a1bd45b2b03f6d1204a6ae2780d3b009799f <0d4d262c1664365e17e0a5ba2ab79f4db484b44e	9a365f41fe0f227ef5a269e240233bd0bffc66c9, 9d4843f1051259854f724e9cdc5b9eac56327037, 647157fecb42b72d930e7b7d0bfbc5f2db9a858a, 0d4d262c1664365e17e0a5ba2ab79f4db484b44e
Linux/Linuxgeneric	6.12	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 9a365f41fe0f227ef5a269e240233bd0bffc66c9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source 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/[email protected]

Quoted source text, attributed separately from HOL analysis.