What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• 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: 2026-07-25 · updated 2026-09-03

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.

Affected products

• Linux kernel: from 5.11 before 5.15.212; from 5.16 before 6.1.178; from 6.2 before 6.6.145; from 6.7 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4 — fixed in 5.15.212, 6.1.178, 6.12.96, 6.18.39, 6.6.145, 7.1.4

How to fix

Upgrade to a fixed version: Linux kernel 5.15.212, 6.1.178, 6.12.96, 6.18.39. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1e446e8f8c763be3de7d0362e024cdf46194ffef
• https://git.kernel.org/stable/c/22cb337370e6539b0418832c6040e9b00c1b74ca
• https://git.kernel.org/stable/c/3e1441a4d06d35a314961e40057bd1f0106bbc14
• https://git.kernel.org/stable/c/637c11e3d8d43a7ee654591cda8d17c55a9234fa
• https://git.kernel.org/stable/c/a935b64548fcfe1d5b4dbdd31dddfb0d7019367f
• https://git.kernel.org/stable/c/e2baf8ea13fb4b10bec2c4751aea05c00dabcd0f
• https://git.kernel.org/stable/c/fa11039d6cdff84584a3ef8cc1f5e1b56e045da2

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