{"id":"CVE-2025-37885","revision":null,"records":[{"revision":"d52d63010bcd4684b684629af30eb5b2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37885","aliases":[],"title":"KVM: x86: Reset IRTE to host control if *new* route isn't postable","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Reset IRTE to host control if *new* route isn't postable\n\nRestore an IRTE back to host control (remapped or posted MSI mode) if the\n*new* GSI route prevents posting the IRQ directly to a vCPU, regardless of\nthe GSI routing type. Updating the IRTE if and only if the new GSI is an\nMSI results in KVM leaving an IRTE posting to a vCPU.\n\nThe dangling IRTE can result in interrupts being incorrectly delivered to\nthe guest, and in the worst case scenario can result in use-after-free,\ne.g. if the VM is torn down, but the underlying host IRQ isn't freed.","state":0,"publishedAt":"2025-05-09T06:45:48.15+00:00","modifiedAt":"2026-10-15T21:52:02.387+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/x86/kvm/svm/avic.c\",\n \"arch/x86/kvm/vmx/posted_intr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"116c7d35b8f72eac383b9fd371d7c1a8ffc2968b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"023816bd5fa46fab94d1e7917fe131b79ed1fb41\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"3481fd96d801715942b6f69fe251133128156f30\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"b5de7ac74f69603ad803c524b840bffd36368fc3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"3066ec21d1a33896125747f68638725f456308db\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"efc644048ecde54f016011fe10110addd0de348f\",\n \"lessThan\": \"9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2\",\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/x86/kvm/svm/avic.c\",\n \"arch/x86/kvm/vmx/posted_intr.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.4\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.4\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.237\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.181\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.136\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.89\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.26\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.5\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769","https://git.kernel.org/stable/c/116c7d35b8f72eac383b9fd371d7c1a8ffc2968b","https://git.kernel.org/stable/c/023816bd5fa46fab94d1e7917fe131b79ed1fb41","https://git.kernel.org/stable/c/3481fd96d801715942b6f69fe251133128156f30","https://git.kernel.org/stable/c/b5de7ac74f69603ad803c524b840bffd36368fc3","https://git.kernel.org/stable/c/3066ec21d1a33896125747f68638725f456308db","https://git.kernel.org/stable/c/9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37885","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37885","identifiers":["CVE-2025-37885"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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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-0576f11c5c744ae2b4858d257ff9df62","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T13:09:46.1658679+00:00","lastSuccessAt":"2026-11-09T13:09:46.2280194+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:09:46.2280194+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T13:04:36.1502744+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T13:04:36.1502744+00:00","lastSuccessAt":"2026-11-09T13:04:36.3096956+00:00","error":null,"lastVerifiedAt":"2026-11-09T13:04:36.3096959+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":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. 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