{"id":"CVE-2025-71202","revision":null,"records":[{"revision":"623a4e42f70a41da9c85f4412be28217","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-71202","aliases":[],"title":"iommu/sva: invalidate stale IOTLB entries for kernel address space","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/sva: invalidate stale IOTLB entries for kernel address space\n\nIntroduce a new IOMMU interface to flush IOTLB paging cache entries for\nthe CPU kernel address space.  This interface is invoked from the x86\narchitecture code that manages combined user and kernel page tables,\nspecifically before any kernel page table page is freed and reused.\n\nThis addresses the main issue with vfree() which is a common occurrence\nand can be triggered by unprivileged users.  While this resolves the\nprimary problem, it doesn't address some extremely rare case related to\nmemory unplug of memory that was present as reserved memory at boot, which\ncannot be triggered by unprivileged users.  The discussion can be found at\nthe link below.\n\nEnable SVA on x86 architecture since the IOMMU can now receive\nnotification to flush the paging cache before freeing the CPU kernel page\ntable pages.","state":0,"publishedAt":"2026-02-14T15:36:06.588+00:00","modifiedAt":"2026-10-19T18:25:23.994+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/Kconfig\",\n                        \"drivers/iommu/iommu-sva.c\",\n                        \"include/linux/iommu.h\",\n                        \"mm/pgtable-generic.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2f26e0a9c9860db290d63e9d85c2c8c09813677f\",\n                            \"lessThan\": \"9f0a7ab700f8620e433b05c57fbd26c92ea186d9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2f26e0a9c9860db290d63e9d85c2c8c09813677f\",\n                            \"lessThan\": \"e37d5a2d60a338c5917c45296bac65da1382eda5\",\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/Kconfig\",\n                        \"drivers/iommu/iommu-sva.c\",\n                        \"include/linux/iommu.h\",\n                        \"mm/pgtable-generic.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\": \"6.18.7\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\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/9f0a7ab700f8620e433b05c57fbd26c92ea186d9","https://git.kernel.org/stable/c/e37d5a2d60a338c5917c45296bac65da1382eda5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71202","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-71202","identifiers":["CVE-2025-71202"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-08T22:02:16.0606753+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-08T22:02:16.0606753+00:00","lastSuccessAt":"2026-11-08T22:02:16.3005264+00:00","error":null,"lastVerifiedAt":"2026-11-08T22:02:16.3005266+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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