Answer in brief
CVE-2026-80684 records a Critical severity (CVSS 9.3) vulnerability in KVM: s390: pci: Fix NULL dereference on AIBV allocation failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <96099486b63985801c9c6ef22505e9aa635b2d20 || >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <0a95abe964400771ad82b027d7b84a0d183cd0db || >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <df947d85e164a50a29d43a96e814f69ab1d0f7ed || >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <e137d082325bbcae780087b57501d38585e625d9 || >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <d1a103dc9016c25e7423ce5841a5cc2df76d59f3 || >=3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc <8bf09b9b7d3232806df95f409581f8a9fd99a3fa | 96099486b63985801c9c6ef22505e9aa635b2d20, 0a95abe964400771ad82b027d7b84a0d183cd0db, df947d85e164a50a29d43a96e814f69ab1d0f7ed, e137d082325bbcae780087b57501d38585e625d9, d1a103dc9016c25e7423ce5841a5cc2df76d59f3, 8bf09b9b7d3232806df95f409581f8a9fd99a3fa |
| Linux/Linuxgeneric | 6.0 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
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.
Quoted source text, attributed separately from HOL analysis.