CVE-2026-98896
Published Oct 23, 2026
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().
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References
Other 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
Frequently Asked Questions
What is CVE-2026-98896? +
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().
How do I check if I'm vulnerable to CVE-2026-98896? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.