{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-46277: mm/zone_device: do not touch device folio after calling ->folio_free()","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-46277","status":"final","version":"1","initial_release_date":"2026-06-08T15:41:19.760Z","current_release_date":"2026-06-14T04:29:57.621Z","revision_history":[{"date":"2026-06-08T15:41:19.760Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/zone_device: do not touch device folio after calling ->folio_free()\n\nThe contents of a device folio can immediately change after calling\n->folio_free(), as the folio may be reallocated by a driver with a\ndifferent order.  Instead of touching the folio again to extract the\npgmap, use the local stack variable when calling percpu_ref_put_many().","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-46277 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-46277"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-46277"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/85be0a262e39c706edb53c88af8afde2e98222ba"},{"category":"external","summary":"git.kernel.org","url":"https://git.kernel.org/stable/c/39928984956037cabd304321cb8f342e47421db5"}]},"product_tree":{"branches":[{"category":"vendor","name":"Linux","branches":[{"category":"product_name","name":"Linux","branches":[{"category":"product_version_range","name":">=d245f9b4ab806733a77e51a218ca7b8bc3135cd9 <85be0a262e39c706edb53c88af8afde2e98222ba","product":{"name":"Linux Linux >=d245f9b4ab806733a77e51a218ca7b8bc3135cd9 <85be0a262e39c706edb53c88af8afde2e98222ba","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=d245f9b4ab806733a77e51a218ca7b8bc3135cd9 <39928984956037cabd304321cb8f342e47421db5","product":{"name":"Linux Linux >=d245f9b4ab806733a77e51a218ca7b8bc3135cd9 <39928984956037cabd304321cb8f342e47421db5","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Linux","branches":[{"category":"product_name","name":"Linux","branches":[{"category":"product_version","name":"6.19","product":{"name":"Linux Linux 6.19","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:6.19:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"0","product":{"name":"Linux Linux 0","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:6.19:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"7.0.4","product":{"name":"Linux Linux 7.0.4","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:6.19:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"7.1-rc1","product":{"name":"Linux Linux 7.1-rc1","product_id":"CSAFPID-6","product_identification_helper":{"cpe":"cpe:2.3:a:linux:linux:6.19:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-46277","title":"mm/zone_device: do not touch device folio after calling ->folio_free()","notes":[{"category":"description","text":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/zone_device: do not touch device folio after calling ->folio_free()\n\nThe contents of a device folio can immediately change after calling\n->folio_free(), as the folio may be reallocated by a driver with a\ndifferent order.  Instead of touching the folio again to extract the\npgmap, use the local stack variable when calling percpu_ref_put_many().","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3"],"fixed":["CSAFPID-4","CSAFPID-5","CSAFPID-6"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 0, 39928984956037cabd304321cb8f342e47421db5, 7.0.4, 7.1-rc1, 85be0a262e39c706edb53c88af8afde2e98222ba.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3"]}]}]}