CVE-2026-80551

CVE CVE-2026-80551EUVD EUVD-2026-66466Published 2026-08-26T14:37:20.000ZLast changed 2026-08-27T12:40:11.000ZCVSS 9.3

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.46; 5.3; patch: 7.2; 01aa26c672c0eb771de4aaa2a8ccf6055778887b <08ef2a82115690d6e229615872ac1731af732497; patch: 0; patch: 6.6.154; patch: 7.1.10; 01aa26c672c0eb771de4aaa2a8ccf6055778887b <0d46c2565f173bcddcdcaf44a4f69789a20535e2; 01aa26c672c0eb771de4aaa2a8ccf6055778887b <460b977a4e71cc319fdadf91c193ec3beaa57263; patch: 6.12.105; 01aa26c672c0eb771de4aaa2a8ccf6055778887b <565bef268d75bf7df665bce6923a88cd0eb74592; 01aa26c672c0eb771de4aaa2a8ccf6055778887b <fc59e9482117ebdccd6dc7fa8082f8b980fd021e

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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