What’s Vulnerable › Vulnerabilities

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

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-23 · updated 2026-10-26

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().

Affected products

• Linux kernel: before 5.10.271; before 5.15.222; before 6.1.189; before 6.6.158; before 6.12.111; before 6.18.53 — fixed in 5.10.271, 5.15.222, 6.1.189, 6.12.111, 6.18.53, 6.6.158

How to fix

Upgrade to a fixed version: Linux kernel 5.10.271, 5.15.222, 6.1.189, 6.12.111. Check the vendor advisory for mitigations.

References

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

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