CVE-2026-80552

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> s390/vfio_ccw: Ensure index for read/write regions are within range<br /> <br /> The introduction of the capability chain rightly clamped the<br /> region indexes to the range of the capabilities itself, but<br /> neglected to do so for the existing read/write regions which<br /> should also be enforced.