Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/i915/mst: limit DP MST ESI service loop The loop in intel_dp_check_mst_status() keeps servicing interrupts originating from the sink without bound. Add an upper bound to the new interrupts occurring during interrupt processing to not get stuck on potentially stuck sink devices. Use arbitrary 32 tries to clear incoming interrupts in one go. Discovered using AI-assisted static analysis confirmed by Intel Product Security. Note: The condition likely pre-dates the commit in the Fixes: tag, but this is about as far back as a backport has any chance of succeeding. Before that, the retry had a goto. (cherry picked from commit b4ea5272133059acb493cc36599071a9e852ec2e)
References
- https://git.kernel.org/stable/c/005771c18c5b2c98cb4e7517661aea460990fd3f
- https://git.kernel.org/stable/c/9061fbf2230b6fcef042a6f637beae57c2fc93a5
- https://git.kernel.org/stable/c/e3bcd3bf7eeca9570b9fa0b2f8a602c7bcc6b0d0
FAQ
What is CVE-2026-68241?
CVE-2026-68241 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: drm/i915/mst: limit DP MST ESI service loop The loop in intel_dp_check_mst_status() keeps servicing interrupts originating from th...
How severe is CVE-2026-68241?
CVSS scoring is not yet available for CVE-2026-68241. Check NVD for updates.
Is there a patch for CVE-2026-68241?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.