CVE-2026-46013

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46013", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.092Z", "datePublished": "2026-05-27T12:56:15.236Z", "dateUpdated": "2026-06-14T17:47:59.320Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:47:59.320Z"}, "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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/memfd_luo.c"], "versions": [{"version": "b3749f174d686627f702234e64bad976dc432dbc", "lessThan": "bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9", "status": "affected", "versionType": "git"}, {"version": "b3749f174d686627f702234e64bad976dc432dbc", "lessThan": "3538f90ab89aaf302782b4b073a0aae66904cd67", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["mm/memfd_luo.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9"}, {"url": "https://git.kernel.org/stable/c/3538f90ab89aaf302782b4b073a0aae66904cd67"}], "title": "mm/memfd_luo: fix physical address conversion in put_folios cleanup", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["mm/memfd_luo.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9", "status": "affected", "version": "b3749f174d686627f702234e64bad976dc432dbc", "versionType": "git"}, {"lessThan": "3538f90ab89aaf302782b4b073a0aae66904cd67", "status": "affected", "version": "b3749f174d686627f702234e64bad976dc432dbc", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["mm/memfd_luo.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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"}], "id": "CVE-2026-46013", "lastModified": "2026-06-17T10:52:53.950", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-27T14:17:19.517", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3538f90ab89aaf302782b4b073a0aae66904cd67"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mm/memfd_luo: fix physical address conversion in put_folios cleanup", "id": "2482087", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482087"}, "csaw": false, "cwe": "CWE-681", "details": ["A flaw was found in the Linux kernel. An issue in the `memfd_luo` component, specifically within the `put_folios` cleanup path of `memfd_luo_retrieve_folios()`, leads to incorrect physical address conversion and a missing check for sparse file holes. This could result in incorrect memory handling, potentially causing system instability or unexpected behavior."], "name": "CVE-2026-46013", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46013\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46013\nhttps://lore.kernel.org/linux-cve-announce/2026052745-CVE-2026-46013-3562@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3749f174d686627f702234e64bad976dc432dbc,bd0d6bde286a2b8e3ae7975b0dcc2d43875d5fc9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3749f174d686627f702234e64bad976dc432dbc,3538f90ab89aaf302782b4b073a0aae66904cd67)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T18:45:39.822278+00:00", "updated": "2026-06-17T23:45:14.014487+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}