CVE-2026-23408

{"id": "CVE-2026-23408", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "c053ae381ce227577567d1ef10090ce7506d7a28", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "35f4caec1352054b9a61cfdf2bf1898073637aa0", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "86feeccd6b93ed94bd6655f30de80f163f8d5a45", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "7998ab3010d2317643f91828f1853d954ef31387", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "18b5233e860c294a847ee07869d93c0b8673a54b", "versionType": "git"}, {"status": "affected", "version": "145a0ef21c8e944957f58e2c8ffcd8a10f46266a", "lessThan": "5df0c44e8f5f619d3beb871207aded7c78414502", "versionType": "git"}], "programFiles": ["security/apparmor/policy.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"status": "unaffected", "version": "0", "lessThan": "5.5", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.253", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.203", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.169", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.130", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.77", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.18", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.8", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["security/apparmor/policy.c"], "defaultStatus": "affected"}]}], "published": "2026-04-01T09:16:16.747", "references": [{"url": "https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-415"}]}], "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\")"}], "lastModified": "2026-06-17T10:21:31.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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