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VULNERABILITIES

CVE-2026-80551 Details

Description

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Ensure first IDAW remains constant The first IDAW in a list does not need to be on a 2K/4K boundary like all others, and so is read separately to accurately calculate the size of the buffer needed to read the full IDAL. Verify that the address found in the first IDAW is unchanged between reads, to ensure a consistent set of IDAWs being worked with.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:9.3 CRITICALVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/08ef2a82115690d6e229615872ac1731af732497 kernel.org
https://git.kernel.org/stable/c/0d46c2565f173bcddcdcaf44a4f69789a20535e2 kernel.org
https://git.kernel.org/stable/c/460b977a4e71cc319fdadf91c193ec3beaa57263 kernel.org
https://git.kernel.org/stable/c/565bef268d75bf7df665bce6923a88cd0eb74592 kernel.org
https://git.kernel.org/stable/c/fc59e9482117ebdccd6dc7fa8082f8b980fd021e kernel.org

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-80551
NVD Published Date:
Aug 26, 2026
NVD Last Modified:
Aug 27, 2026
Source:
kernel.org
CVE-2026-80551 Details - Not Deferred