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

What is CVE-2026-64301?

CVE-2026-64301 is a medium-severity memory corruption vulnerability in Linux kernel, published on 25 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Which versions are affected by CVE-2026-64301?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-64301?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-64301 being exploited?

There is no known exploitation of CVE-2026-64301 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2026-64301, DEBIAN-CVE-2026-64301, GHSA-hvpp-3fx5-g228, ROOT-OS-UBUNTU-2204-CVE-2026-64301, UBUNTU-CVE-2026-64301.