# CVE-2022-50108: mfd: max77620: Fix refcount leak in max77620\_initialise\_fps

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-06-18 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.7

## Description

In the Linux kernel, the following vulnerability has been resolved: mfd: max77620: Fix refcount leak in max77620_initialise_fps of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

## 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.
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## 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/b948ff8a9e9ad46d4dff9127777caa14c8c2b53c
- https://git.kernel.org/stable/c/afdbadbf18c19779d7bc5df70d872924f9bbd76b
- https://git.kernel.org/stable/c/facd31bbc799f4d0cd25d9d688af7ca41e7f38ee
- https://git.kernel.org/stable/c/50d5fe8cb94c319cb4316f4d824570c075565354
- https://git.kernel.org/stable/c/a29c40814039535b950149311986a5f348b5db14
- https://git.kernel.org/stable/c/1520669c8255bd637c6b248b2be910e2688d38dd

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