CVE-2026-64301: regulator: scmi: fix of_node refcount leak in scmi_regulator_probe()

highCVSS 7.1CVE-2026-64301

CSIRTS triage

vendor: Linux product: regulatorOther

What: This vulnerability addresses a reference count leak in the scmi_regulator_probe function.
Who is affected: Deployments using the regulator subsystem with SCMI support.
Urgency: Remediation is important to ensure proper resource management, although no exploitation has been reported.
Action: Apply the patch for CVE-2026-64301.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.1
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64301

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-643010.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64301	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownCVE-2026-64301: In the Linux kernel, the following vulnerability has been resolved: regulator: scmi: fix of_no…nvd

Recent advisories for regulator

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-64301: In the Linux kernel, the following vulnerability has been resolved: regulator: scmi: fix of_no…nvd · 2026-07-25
unknownCVE-2026-64230: In the Linux kernel, the following vulnerability has been resolved: regulator: tps65219: fix i…nvd · 2026-07-24
criticalCVE-2026-25718: Gitea versions before 1.25.5 mishandle path resolution during template repository generation, …nvd · 2026-07-03
lowCVE-2026-46252: regulator: core: fix locking in regulator_resolve_supply() error pathmsrc · 2026-06-09