Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure index for read/write regions are within range The introduction of the capability chain rightly clamped the region indexes to the range of the capabilities itself, but neglected to do so for the existing read/write regions which should also be enforced.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99
- https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700
- https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07
- https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf
- https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5
- https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3
- https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b
FAQ
What is CVE-2026-80552?
CVE-2026-80552 is a vulnerability with a CVSS score of 8.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure index for read/write regions are within range The introduction of the capability chain rightly clamped the r...
How severe is CVE-2026-80552?
CVE-2026-80552 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-80552?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.