CVE-2026-46013

{"id": "CVE-2026-46013", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b3749f174d686627f702234e64bad976dc432dbc", "lessThan": "bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9", "versionType": "git"}, {"status": "affected", "version": "b3749f174d686627f702234e64bad976dc432dbc", "lessThan": "3538f90ab89aaf302782b4b073a0aae66904cd67", "versionType": "git"}], "programFiles": ["mm/memfd_luo.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"status": "unaffected", "version": "0", "lessThan": "6.19", "versionType": "semver"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["mm/memfd_luo.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:19.517", "references": [{"url": "https://git.kernel.org/stable/c/3538f90ab89aaf302782b4b073a0aae66904cd67", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/memfd_luo: fix physical address conversion in put_folios cleanup\n\nIn memfd_luo_retrieve_folios()'s put_folios cleanup path:\n\n1. kho_restore_folio() expects a phys_addr_t (physical address) but\n receives a raw PFN (pfolio->pfn). This causes kho_restore_page() to\n check the wrong physical address (pfn << PAGE_SHIFT instead of the\n actual physical address).\n\n2. This loop lacks the !pfolio->pfn check that exists in the main\n retrieval loop and memfd_luo_discard_folios(), which could\n incorrectly process sparse file holes where pfn=0.\n\nFix by converting PFN to physical address with PFN_PHYS() and adding\nthe !pfolio->pfn check, matching the pattern used elsewhere in this file.\n\nThis issue was identified by the AI review.\nhttps://sashiko.dev/#/patchset/20260323110747.193569-1-duanchenghao@kylinos.cn"}], "lastModified": "2026-06-17T10:52:53.950", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}