{"id":"CVE-2026-45862","revision":null,"records":[{"revision":"eeaa1b964bc54f22a119a26b4a7c7cd2","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-45862","aliases":[],"title":"iommu/vt-d: Flush cache for PASID table before using it","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Flush cache for PASID table before using it\n\nWhen writing the address of a freshly allocated zero-initialized PASID\ntable to a PASID directory entry, do that after the CPU cache flush for\nthis PASID table, not before it, to avoid the time window when this\nPASID table may be already used by non-coherent IOMMU hardware while\nits contents in RAM is still some random old data, not zero-initialized.","state":0,"publishedAt":"2026-05-27T12:15:41.903+00:00","modifiedAt":"2026-10-19T19:26:39.041+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 \"drivers/iommu/intel/pasid.c\"\n ],\n \"versions\": [\n {\n \"version\": \"7e00b52c8cdd9d3a985d63d72ecae7bde6314883\",\n \"lessThan\": \"cd75e77125c8a51754ca4cd60b4ca083ed735d1d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5c65f097124770c3e5b9b83ed1a8b68c119bc7b5\",\n \"lessThan\": \"0616137b70e6d9a547d4b60df8e1b64e36d83661\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"2bed9455db7cc0ab7ece6b3d846472097b52855a\",\n \"lessThan\": \"36990407cdd257473607e33802d00e978af2759e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"194b3348bdbb7db65375c72f3f774aee4cc6614e\",\n \"lessThan\": \"c93f23375d8c410954b0df825e814b632fd62b9d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"194b3348bdbb7db65375c72f3f774aee4cc6614e\",\n \"lessThan\": \"5962c30a6f05ea1ab73f039e235bb30716243517\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"194b3348bdbb7db65375c72f3f774aee4cc6614e\",\n \"lessThan\": \"36244dfd3853f7bf89d03b8e90d56b23ce7fbc16\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"194b3348bdbb7db65375c72f3f774aee4cc6614e\",\n \"lessThan\": \"d15cda135148ea7ba929cfdbcf208182bc29a7aa\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"194b3348bdbb7db65375c72f3f774aee4cc6614e\",\n \"lessThan\": \"22d169bdd2849fe6bd18c2643742e1c02be6451c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1b48c70feefc499b62670521efa002ab01e05df5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bc348a6cc8f92e9979fbfbb3c6b48fd51b4b1dbf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.10.175\",\n \"lessThan\": \"5.10.252\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.103\",\n \"lessThan\": \"5.15.202\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.16\",\n \"lessThan\": \"6.1.165\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.237\",\n \"lessThan\": \"5.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.2.3\",\n \"lessThan\": \"6.3\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\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 \"drivers/iommu/intel/pasid.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.3\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.3\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.252\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.202\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.165\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.128\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.75\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.14\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19.4\",\n \"lessThanOrEqual\": \"6.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0\",\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:H/PR:L/UI:N/S:C/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/cd75e77125c8a51754ca4cd60b4ca083ed735d1d","https://git.kernel.org/stable/c/0616137b70e6d9a547d4b60df8e1b64e36d83661","https://git.kernel.org/stable/c/36990407cdd257473607e33802d00e978af2759e","https://git.kernel.org/stable/c/c93f23375d8c410954b0df825e814b632fd62b9d","https://git.kernel.org/stable/c/5962c30a6f05ea1ab73f039e235bb30716243517","https://git.kernel.org/stable/c/36244dfd3853f7bf89d03b8e90d56b23ce7fbc16","https://git.kernel.org/stable/c/d15cda135148ea7ba929cfdbcf208182bc29a7aa","https://git.kernel.org/stable/c/22d169bdd2849fe6bd18c2643742e1c02be6451c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45862","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-45862","identifiers":["CVE-2026-45862"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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