CVE-2026-23091: intel_th: fix device leak on output open()
In the Linux kernel, the following vulnerability has been resolved:
intelth: fix device leak on output open()
Make sure to drop the reference taken when looking up the th device during output device open() on errors and on close().
Note that a recent commit fixed the leak in a couple of open() error paths but not all of them, and the reference is still leaking on successful open().
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-23091?
CVE-2026-23091 has been assigned a medium severity rating due to its potential to cause a device leak upon output device interactions.
How do I fix CVE-2026-23091?
To fix CVE-2026-23091, ensure that the latest Linux kernel patches are applied that resolve the device leak issue.
What versions of the Linux kernel are affected by CVE-2026-23091?
CVE-2026-23091 affects certain versions of the Linux kernel where the intel_th driver is implemented.
Is CVE-2026-23091 being actively exploited?
As of now, there is no public information indicating that CVE-2026-23091 is being actively exploited in the wild.
What does the intel_th driver do in relation to CVE-2026-23091?
The intel_th driver is responsible for handling Intel's tracehub devices and the vulnerability involves a leak during the device open process.