{"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"}}}}