{"id":"CVE-2025-37885","revision":"d52d63010bcd4684b684629af30eb5b2","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":[]}