{"id":"CVE-2026-89931","summary":"KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit\n\nAlways check and clear KVM_REQ_GET_NESTED_STATE_PAGES when emulating a\nnested VM-Exit to ensure the request is cleared, even when KVM was built\nwith CONFIG_KVM_HYPERV=n, as KVM subtly relies on the \"check\" to clear\nthe flag and thus avoid double-mapping the vmcs12 pages, e.g. if KVM\nmanages to bail from VM-Enter without processing the request, and then\nemulates VMLAUNCH or VMRESUME.","modified":"2026-09-18T03:48:34.063628476Z","published":"2026-09-16T10:32:22.202Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89931.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/11722439fb206c88e6f31be54173efa9880b4ccb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/674a3244f07f323f21a106a7bdcaebb6db6a5058"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae190f2439ca30067927077bf570d4c5edf07a0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89931.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89931"},{"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":"b4f69df0f65e97fec439130a0d0a8b9c7cc02df2"},{"fixed":"ae190f2439ca30067927077bf570d4c5edf07a0f"},{"fixed":"674a3244f07f323f21a106a7bdcaebb6db6a5058"},{"fixed":"bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5"},{"fixed":"11722439fb206c88e6f31be54173efa9880b4ccb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89931.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89931.json"}}],"schema_version":"1.9.0"}