{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23408","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:46.013Z","datePublished":"2026-04-01T08:36:37.873Z","dateUpdated":"2026-05-11T22:06:19.995Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:06:19.995Z"},"descriptions":[{"lang":"en","value":"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\")"}],"metrics":[{"cvssV3_1":{"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"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/apparmor/policy.c"],"versions":[{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"c053ae381ce227577567d1ef10090ce7506d7a28","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"35f4caec1352054b9a61cfdf2bf1898073637aa0","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"86feeccd6b93ed94bd6655f30de80f163f8d5a45","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"7998ab3010d2317643f91828f1853d954ef31387","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"18b5233e860c294a847ee07869d93c0b8673a54b","status":"affected","versionType":"git"},{"version":"145a0ef21c8e944957f58e2c8ffcd8a10f46266a","lessThan":"5df0c44e8f5f619d3beb871207aded7c78414502","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["security/apparmor/policy.c"],"versions":[{"version":"5.5","status":"affected"},{"version":"0","lessThan":"5.5","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.169","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.77","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.18","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.8","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"5.5","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.169"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.77"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.19.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"7.0"}]}]}],"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"}}}}