CVE-2026-80552

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.

References

• 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