{"id":"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-\u003eaibv 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-\u003eaisb on failure.","modified":"2026-08-31T03:30:34.023128395Z","published":"2026-08-28T06:52:50.703Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80684.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc"},{"fixed":"96099486b63985801c9c6ef22505e9aa635b2d20"},{"fixed":"0a95abe964400771ad82b027d7b84a0d183cd0db"},{"fixed":"df947d85e164a50a29d43a96e814f69ab1d0f7ed"},{"fixed":"e137d082325bbcae780087b57501d38585e625d9"},{"fixed":"d1a103dc9016c25e7423ce5841a5cc2df76d59f3"},{"fixed":"8bf09b9b7d3232806df95f409581f8a9fd99a3fa"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80684.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.1.183"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.151"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80684.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}