{"id":"CVE-2026-80684","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80684","summary":"KVM: s390: pci: Fix NULL dereference on AIBV allocation failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: Fix NULL dereference on AIBV allocation failure\n\nThe airq_iv_create() can return NULL on failure, but the return value was\nnever checked. If it fails, zdev->aibv will be NULL and fail when\ndereferenced in kvm_zpci_set_airq(). Add a NULL check and free the\npreviously allocated AISB bit and zdev->aisb on failure.","published":"2026-08-28T06:52:50.703Z","modified":"2026-08-30T03:48:21.222298779Z","cvss":{"score":9.3,"severity":"CRITICAL","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"6.1.183"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0a95abe964400771ad82b027d7b84a0d183cd0db"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8bf09b9b7d3232806df95f409581f8a9fd99a3fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/96099486b63985801c9c6ef22505e9aa635b2d20"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d1a103dc9016c25e7423ce5841a5cc2df76d59f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/df947d85e164a50a29d43a96e814f69ab1d0f7ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e137d082325bbcae780087b57501d38585e625d9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80684.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80684"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:48:21.222298779Z"}}