{"id":"CVE-2026-46131","summary":"KVM: x86: check for nEPT/nNPT in slow flush hypercalls","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself.","modified":"2026-07-08T08:13:39.888707666Z","published":"2026-05-28T09:35:46.220Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46131.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae"},{"type":"WEB","url":"https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46131.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46131"},{"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":"aee738236dca0d0870789138ec494e15d6303566"},{"fixed":"971f17f5d91045404e3914029ea57c3da90179a4"},{"fixed":"45fc766bc756ff1d66f8ca026a9c4f7f764adfae"},{"fixed":"d6f4e217d663ede5becc2fd6cb612c749677387b"},{"fixed":"4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57"},{"fixed":"464af6fc2b1dcc74005b7f58ee3812b17777efee"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46131.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.88"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.30"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46131.json"}}],"schema_version":"1.7.5"}