VulnerabilityPublished 25 Jul 2026Updated 6 Nov 2026

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

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in fa11039d6cdff84584a3ef8cc1f5e1b56e045da2 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in fa11039d6cdff84584a3ef8cc1f5e1b56e045da2, e2baf8ea13fb4b10bec2c4751aea05c00dabcd0f, a935b64548fcfe1d5b4dbdd31dddfb0d7019367f +4

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < fa11039d6cdff84584a3ef8cc1f5e1b56e045da2	Fixed in fa11039d6cdff84584a3ef8cc1f5e1b56e045da2
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < e2baf8ea13fb4b10bec2c4751aea05c00dabcd0f	Fixed in e2baf8ea13fb4b10bec2c4751aea05c00dabcd0f
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < a935b64548fcfe1d5b4dbdd31dddfb0d7019367f	Fixed in a935b64548fcfe1d5b4dbdd31dddfb0d7019367f
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 637c11e3d8d43a7ee654591cda8d17c55a9234fa	Fixed in 637c11e3d8d43a7ee654591cda8d17c55a9234fa
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 22cb337370e6539b0418832c6040e9b00c1b74ca	Fixed in 22cb337370e6539b0418832c6040e9b00c1b74ca
LinuxLinux	Affected ≥ 0fbeae70ee7ce98e18a47337cd1f205dd88589e9, < 3e1441a4d06d35a314961e40057bd1f0106bbc14	Fixed in 3e1441a4d06d35a314961e40057bd1f0106bbc14

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: scmi: fix of_node refcount leak in scmi_regulator_probe() scmi_regulator_probe() calls of_find_node_by_name() which takes a reference on the returned device node. On the error path where process_scmi_regulator_of_node() fails, the function returns without calling of_node_put() on the child node, leaking the reference. Add of_node_put(np) on the error path to properly release the reference.

References

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