CVE-2026-80552
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Linux
PublishedAug 26, 2026
First seenAug 26, 2026
How to fix
Update
- Linux Linux3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99, d3b1e38404b22df5a1f93019f2bb656feaad5ae3, 79ea5e0c4c8a9842ae85f45062d947b3297dfc07, d597fa1273802941c7801202135976fecc29672b, 649badf3a2fd8929e40198603a2cb21b74c21700, 988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf, 9f5f9a78fedc45bc29d6a0a64e3a3472361afae5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < 3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < d3b1e38404b22df5a1f93019f2bb656feaad5ae3, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < 79ea5e0c4c8a9842ae85f45062d947b3297dfc07, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < d597fa1273802941c7801202135976fecc29672b, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < 649badf3a2fd8929e40198603a2cb21b74c21700, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < 988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf, db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 ≤ v < 9f5f9a78fedc45bc29d6a0a64e3a3472361afae5, 5.2 | 3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99, d3b1e38404b22df5a1f93019f2bb656feaad5ae3, 79ea5e0c4c8a9842ae85f45062d947b3297dfc07, d597fa1273802941c7801202135976fecc29672b, 649badf3a2fd8929e40198603a2cb21b74c21700, 988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf, 9f5f9a78fedc45bc29d6a0a64e3a3472361afae5 |
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