KVM: s390: pci: Fix handling of AIF enable without AISB

{
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  "url": "https://osv.dev/vulnerability/CVE-2026-68454",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "KVM: s390: pci: Fix handling of AIF enable without AISB",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fix handling of AIF enable without AISB When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virt_to_phys(page_address(NULL)).",
    "evidence": "osv:CVE-2026-68454",
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    "severity": "high",
    "structured": {
      "id": "CVE-2026-68454",
      "aliases": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
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      ],
      "modified": "2026-10-28T02:30:42.273100498Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/124a3769c43713a11a93a821b313e61ad5110cb8",
        "https://git.kernel.org/stable/c/3e3aa6da87d30a0064a17b836685cd43c90a3572",
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        "https://git.kernel.org/stable/c/d48b9b096d11e31690c0a4988f65f21b64c01b2a",
        "https://git.kernel.org/stable/c/df72596278b0e22dac5ef2881e9221a3a2c4ed11",
        "https://git.kernel.org/stable/c/f887df91826e72b570c5e9298e66dd929f09edde",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68454.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-68454",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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  "source_id": "core-osv",
  "document_id": 510132,
  "published_at": "2026-08-13T13:59:57.209+00:00"
}