CVE-2026-80552s390/vfio_ccw: Ensure index for read/write regions are within range
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No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before 3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before d3b1e38404b22df5a1f93019f2bb656feaad5ae3; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before 79ea5e0c4c8a9842ae85f45062d947b3297dfc07; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before d597fa1273802941c7801202135976fecc29672b; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before 649badf3a2fd8929e40198603a2cb21b74c21700; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before 988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf; from db8e5d17ac03a65e2e0ee0ba50bf61a99741d871 before 9f5f9a78fedc45bc29d6a0a64e3a3472361afae5 | CNA record |
References
- https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99
- https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3
- https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07
- https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b
- https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700
- https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf
- https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.