EUVD Vulnerability Catalog
EUVD-2026-67560
Severity: CRITICAL
Base Score: 9.3
CVSS Version: 3.1
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
The airq_iv_create() can return NULL on failure, but the return value was
never checked. If it fails, zdev->aibv will be NULL and fail when
dereferenced in kvm_zpci_set_airq(). Add a NULL check and free the
previously allocated AISB bit and zdev->aisb on failure.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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Attack Vector (AV): Local
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Attack Complexity (AC): Low
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Privileges Required (PR): None
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User Interaction (UI): None
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Scope (S): Changed
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Confidentiality Impact (C): High
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Integrity Impact (I): High
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Availability Impact (A): High
Affected Vendors & Systems
Vendor
Linux
References & Advisory Links
- https://git.kernel.org/stable/c/96099486b63985801c9c6ef22505e9aa635b2d20
- https://git.kernel.org/stable/c/0a95abe964400771ad82b027d7b84a0d183cd0db
- https://git.kernel.org/stable/c/df947d85e164a50a29d43a96e814f69ab1d0f7ed
- https://git.kernel.org/stable/c/e137d082325bbcae780087b57501d38585e625d9
- https://git.kernel.org/stable/c/d1a103dc9016c25e7423ce5841a5cc2df76d59f3
- https://git.kernel.org/stable/c/8bf09b9b7d3232806df95f409581f8a9fd99a3fa
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
Linux
EPSS Probability
0.17
Known Aliases
GHSA-q4fh-xh4r-x3xp
CVE-2026-80684
Published On
2026-08-28
Last Updated
2026-08-29