{"api_version":"1","generated_at":"2026-04-19T01:13:11+00:00","cve":"CVE-2026-23408","urls":{"html":"https://cve.report/CVE-2026-23408","api":"https://cve.report/api/cve/CVE-2026-23408.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23408","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23408"},"summary":{"title":"apparmor: Fix double free of ns_name in aa_replace_profiles()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix double free of ns_name in aa_replace_profiles()\n\nif ns_name is NULL after\n1071         error = aa_unpack(udata, &lh, &ns_name);\n\nand if ent->ns_name contains an ns_name in\n1089                 } else if (ent->ns_name) {\n\nthen ns_name is assigned the ent->ns_name\n1095                         ns_name = ent->ns_name;\n\nhowever ent->ns_name is freed at\n1262                 aa_load_ent_free(ent);\n\nand then again when freeing ns_name at\n1270         kfree(ns_name);\n\nFix this by NULLing out ent->ns_name after it is transferred to ns_name\n\n\")","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-01 09:16:16","updated_at":"2026-04-18 09:16:25"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a","name":"https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387","name":"https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45","name":"https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b","name":"https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28","name":"https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502","name":"https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689","name":"https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0","name":"https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23408","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23408","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 145a0ef21c8e944957f58e2c8ffcd8a10f46266a c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 145a0ef21c8e944957f58e2c8ffcd8a10f46266a c053ae381ce227577567d1ef10090ce7506d7a28 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 145a0ef21c8e944957f58e2c8ffcd8a10f46266a 35f4caec1352054b9a61cfdf2bf1898073637aa0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 145a0ef21c8e944957f58e2c8ffcd8a10f46266a 55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.169 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.77 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.18 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.8 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * 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the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix double free of ns_name in aa_replace_profiles()\n\nif ns_name is NULL after\n1071         error = aa_unpack(udata, &lh, &ns_name);\n\nand if ent->ns_name contains an ns_name in\n1089                 } else if (ent->ns_name) {\n\nthen ns_name is assigned the ent->ns_name\n1095                         ns_name = ent->ns_name;\n\nhowever ent->ns_name is freed at\n1262                 aa_load_ent_free(ent);\n\nand then again when freeing ns_name at\n1270         kfree(ns_name);\n\nFix this by NULLing out ent->ns_name after it is transferred to ns_name\n\n\")"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-04-18T08:58:43.247Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689"},{"url":"https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28"},{"url":"https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0"},{"url":"https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a"},{"url":"https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45"},{"url":"https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387"},{"url":"https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b"},{"url":"https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502"}],"title":"apparmor: Fix double free of ns_name in aa_replace_profiles()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23408","datePublished":"2026-04-01T08:36:37.873Z","dateReserved":"2026-01-13T15:37:46.013Z","dateUpdated":"2026-04-18T08:58:43.247Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-01 09:16:16","lastModifiedDate":"2026-04-18 09:16:25","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"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","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23408","Ordinal":"1","Title":"apparmor: Fix double free of ns_name in aa_replace_profiles()","CVE":"CVE-2026-23408","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23408","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: Fix double free of ns_name in aa_replace_profiles()\n\nif ns_name is NULL after\n1071         error = aa_unpack(udata, &lh, &ns_name);\n\nand if ent->ns_name contains an ns_name in\n1089                 } else if (ent->ns_name) {\n\nthen ns_name is assigned the ent->ns_name\n1095                         ns_name = ent->ns_name;\n\nhowever ent->ns_name is freed at\n1262                 aa_load_ent_free(ent);\n\nand then again when freeing ns_name at\n1270         kfree(ns_name);\n\nFix this by NULLing out ent->ns_name after it is transferred to ns_name\n\n\")","Type":"Description","Title":"apparmor: Fix double free of ns_name in aa_replace_profiles()"}]}}}