{"id":"CVE-2026-98928","revision":null,"records":[{"revision":"ae096fc2cdbf419aa11ce20cc5dbe57b","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-98928","aliases":[],"title":"KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2\n\npkvm_init_features_from_host() takes KVM_ARCH_FLAG_GUEST_HAS_SVE and\nKVM_ARM_VCPU_SVE from the host separately, but pkvm_vcpu_init_sve()\ntests the bit while vcpu_has_sve() reads the flag. A host that sets the\nflag without the bit gets a vCPU with a NULL sve_state that the world\nswitch loads the guest's SVE state from.\n\nDerive the flag from the bit, and drop the protected path's copy of the\nhost's flag, which is dead code since protected VMs are not allowed SVE.","state":0,"publishedAt":"2026-10-23T12:08:09.412+00:00","modifiedAt":"2026-10-23T12:08:09.412+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/kvm/hyp/nvhe/pkvm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"41d6028e28bd474298ff10409c292ec46cf43a90\",\n                            \"lessThan\": \"4efda204087145d40a84344edec7e9d3885ad3ab\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"41d6028e28bd474298ff10409c292ec46cf43a90\",\n                            \"lessThan\": \"7b5e99d286747b6b5b583b8efcd06bdbdd94b229\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"41d6028e28bd474298ff10409c292ec46cf43a90\",\n                            \"lessThan\": \"4f16c5fc8dc4c5596e3777ab9f449a54e3f85fd5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/kvm/hyp/nvhe/pkvm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/4efda204087145d40a84344edec7e9d3885ad3ab","https://git.kernel.org/stable/c/7b5e99d286747b6b5b583b8efcd06bdbdd94b229","https://git.kernel.org/stable/c/4f16c5fc8dc4c5596e3777ab9f449a54e3f85fd5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98928","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98928","identifiers":["CVE-2026-98928"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-27T12:11:26.2576891+00:00","complete":true,"records":1758,"lastAttemptAt":"2026-10-27T12:11:26.2576891+00:00","lastSuccessAt":"2026-10-27T12:11:26.4109794+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:26.4109818+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-187d2b72c94ceb8c4417f1032ec3109a3a3a7b730abadb561d8cdd2a96e04d27-f78a30aaaad853f1aad2287cb2a8b29183d3796da4598450ac73381040add831","complete":true,"records":414965,"lastAttemptAt":"2026-10-27T12:09:36.1519081+00:00","lastSuccessAt":"2026-10-27T12:09:36.0728442+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:09:36.1519081+00:00","snapshotPublishedAt":"2026-10-27T11:21:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-27T12:11:29.47083+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":0,"expectedIdentifiers":13480},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-27T12:11:26.2576891+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-27T12:11:26.2576891+00:00","lastSuccessAt":"2026-10-27T12:11:26.4121816+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:26.4121821+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-5ee8265b1af545a2a0b6a7090a6f68e1","complete":true,"records":13419,"lastAttemptAt":"2026-10-27T12:11:27.4905347+00:00","lastSuccessAt":"2026-10-27T12:11:27.485+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:27.485+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13480,"expectedIdentifiers":13480},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-c3121b113ecd88f1c92ccfa0ec9757ddc8386e4c12afd2597450b815744f800a","complete":true,"records":9779,"lastAttemptAt":"2026-10-27T12:11:26.1198173+00:00","lastSuccessAt":"2026-10-26T15:37:14.3083004+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:26.1198173+00:00","snapshotPublishedAt":"2026-10-26T14:48:41+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-bad5d31e7f6a5e3d338e11d8789069b63620a403f927730769688b42f768e4f6","complete":true,"records":1965,"lastAttemptAt":"2026-10-27T12:09:36.2922109+00:00","lastSuccessAt":"2026-10-26T16:35:43.1460623+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:09:36.2922109+00:00","snapshotPublishedAt":"2026-10-26T16:18:29+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-112103ad2640f03b274c0e731c3f4398f99b844297f2e68d520aeec5561d6df2","complete":true,"records":2997,"lastAttemptAt":"2026-10-27T12:11:26.2231006+00:00","lastSuccessAt":"2026-10-27T11:11:56.4872351+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:26.2231006+00:00","snapshotPublishedAt":"2026-10-27T10:33:05+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-613106f7517c5e576506cdc652c4b814a47963a201e2f12bb51cd979a20d06a7","complete":true,"records":230814,"lastAttemptAt":"2026-10-27T12:11:25.9959484+00:00","lastSuccessAt":"2026-10-27T12:11:24.6734033+00:00","error":null,"lastVerifiedAt":"2026-10-27T12:11:25.9959484+00:00","snapshotPublishedAt":"2026-10-27T11:33:25+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}