Vulnerability details
CVE-2026-80684
Linux Linux
KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
CVSS 3.1
9.3Critical
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.0 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < 0a95abe964400771ad82b027d7b84a0d183cd0db | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < df947d85e164a50a29d43a96e814f69ab1d0f7ed | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < 96099486b63985801c9c6ef22505e9aa635b2d20 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < d1a103dc9016c25e7423ce5841a5cc2df76d59f3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < 8bf09b9b7d3232806df95f409581f8a9fd99a3fa | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc ≤ v < e137d082325bbcae780087b57501d38585e625d9 | CVEProject cvelistV5 (CNA) |
References and advisories
6- 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
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Details
- Published
- 2026-08-28
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.14%
Probability of exploitation in 30 days
3.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —