CVE-2026-80552

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 3.1

8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

Published

2026-08-26

Modified

2026-10-16

Record from

the NVD, synced 2026-10-19

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

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