{"id":"CVE-2026-74355","revision":"ee9b8cd065894b4a9d03b1e2f1346fe3","records":[{"revision":"ee9b8cd065894b4a9d03b1e2f1346fe3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74355","aliases":[],"title":"iommu/vt-d: Fix RB-tree corruption in probe error path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix RB-tree corruption in probe error path\n\nThe info->node RB-tree member is zero-initialized via kzalloc. If\na device does not support ATS, the device_rbtree_insert() call is\nskipped. If a subsequent probe step fails, the error path jumps to\ndevice_rbtree_remove(), which misinterprets the zeroed node as\na tree root and corrupts the device RB-tree.\n\nFix this by explicitly initializing the RB-node as empty using\nRB_CLEAR_NODE() during initialization and guarding the removal with\nRB_EMPTY_NODE().","state":0,"publishedAt":"2026-08-15T05:58:40.766+00:00","modifiedAt":"2026-10-16T18:55:35.014+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/iommu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4f1492efb495bcef34c9ee8a94af81e6cea5abf4\",\n                            \"lessThan\": \"f5102e0fc3c6dc8685549891a96e4589fdb3e211\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4f1492efb495bcef34c9ee8a94af81e6cea5abf4\",\n                            \"lessThan\": \"d16923a45d4d08367650fdc3451c89299ab6ac5a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4f1492efb495bcef34c9ee8a94af81e6cea5abf4\",\n                            \"lessThan\": \"43bd9e6d5513cb1edbafdeef146a1edc3aaced56\",\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                        \"drivers/iommu/intel/iommu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\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:H/UI:N/S:C/C:H/I:H/A:H","score":8.2,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/f5102e0fc3c6dc8685549891a96e4589fdb3e211","https://git.kernel.org/stable/c/d16923a45d4d08367650fdc3451c89299ab6ac5a","https://git.kernel.org/stable/c/43bd9e6d5513cb1edbafdeef146a1edc3aaced56"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74355","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74355","identifiers":["CVE-2026-74355"]},"retained":false,"historicalAffected":[]}],"coverage":[]}