{"id":"CVE-2026-97946","revision":"91b9740318c1431997047baca96f467a","records":[{"revision":"91b9740318c1431997047baca96f467a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97946","aliases":[],"title":"x86/amd_node: Fix PCI device reference counting in amd_smn_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/amd_node: Fix PCI device reference counting in amd_smn_init()\n\nThe local \"root\" pointer is a temporary variable used during the device\nsearch. Therefore, refcount related to the search iterators should be cleaned\nup after the search is complete.\n\nUse the __free() cleanup macro to ensure the refcount is decremented when the\ntemporary pointer goes out of scope.\n\nAdditionally, increment the refcount when caching a root pointer. This ensures\nthe in-use refcount is separate from the temporary search refcounting.\n\nFinally, drop the redundant \"root = NULL\" before the second search loop. The\npci_get_class() iterator always decrements the refcount of its \"from\"\nargument, so the first loop can only fall through with \"root\" already NULL.","state":0,"publishedAt":"2026-09-25T10:22:56.572+00:00","modifiedAt":"2026-10-19T09:11:12.606+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/kernel/amd_node.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0a4b61d9c2e496b5f0a10e29e355a1465c8738bb\",\n                            \"lessThan\": \"84e3a71d11d8593c127b468d75b2653af5074f81\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0a4b61d9c2e496b5f0a10e29e355a1465c8738bb\",\n                            \"lessThan\": \"aa2a4277ad42fd8f918c6dc652473946a253f7b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0a4b61d9c2e496b5f0a10e29e355a1465c8738bb\",\n                            \"lessThan\": \"27600805e62f800bacf990354632eae4e487d34c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c4ad899a33198ab6335732c769835d035e66894a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.17.8\",\n                            \"lessThan\": \"6.18\",\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                        \"arch/x86/kernel/amd_node.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/84e3a71d11d8593c127b468d75b2653af5074f81","https://git.kernel.org/stable/c/aa2a4277ad42fd8f918c6dc652473946a253f7b0","https://git.kernel.org/stable/c/27600805e62f800bacf990354632eae4e487d34c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97946","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97946","identifiers":["CVE-2026-97946"]},"retained":false,"historicalAffected":[]}],"coverage":[]}