# CVE-2023-53191: irqchip/alpine-msi: Fix refcount leak in alpine\_msix\_init\_domains

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.6

## Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains of_irq_find_parent() returns a node pointer with refcount incremented, We should use of_node_put() on it when not needed 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/eef04516f0c317ce80502c1d6b0d06235a87cd8f
- https://git.kernel.org/stable/c/eef09f786df4b34b97557929287c4e5a83bbf09b
- https://git.kernel.org/stable/c/9e79ac4f70fd51243e1c6108d4b0baf16cfde99c
- https://git.kernel.org/stable/c/c9aaf4efe1f02b2fef21a69fb3652f5ad12a5710
- https://git.kernel.org/stable/c/d6c66c46889752fa4962c6388516f7ab66a8d6a1
- https://git.kernel.org/stable/c/65e30bd1310d90b794c377bf405394157854aa30
- https://git.kernel.org/stable/c/5fbf2cc39b62a4afe44f3d42ee3dcf8f012c1926
- https://git.kernel.org/stable/c/071d068b89e95d1b078aa6bbcb9d0961b77d6aa1

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Page: https://cve.now/CVE-2023-53191
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