CVE-2026-80551

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Source

https://cve.org/CVERecord?id=CVE-2026-80551

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80551.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-80551

Downstream

AZL-97824

DEBIAN-CVE-2026-80551

Published

2026-08-26T14:37:20.554Z

Modified

2026-08-28T03:47:29.007782367Z

Severity

9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator

Summary

s390/vfio_ccw: Ensure first IDAW remains constant

Details

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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80551.json",
    "cna_assigner": "Linux"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

01aa26c672c0eb771de4aaa2a8ccf6055778887b

Fixed

460b977a4e71cc319fdadf91c193ec3beaa57263

Fixed

0d46c2565f173bcddcdcaf44a4f69789a20535e2

Fixed

08ef2a82115690d6e229615872ac1731af732497

Fixed

fc59e9482117ebdccd6dc7fa8082f8b980fd021e

Fixed

565bef268d75bf7df665bce6923a88cd0eb74592

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80551.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

5.3.0

Fixed

6.6.154

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.105

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.46

Type: ECOSYSTEM
Events: Introduced

6.19.0

Fixed

7.1.10

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80551.json"