{"cve":"CVE-2026-23408","nvd":{"published":"2026-04-01T09:16:16.747","modified":"2026-06-17T10:21:31.487","status":"Analyzed","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\")","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-415"],"references":["https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b","https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0","https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a","https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502","https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-23408","score":0.00184,"percentile":0.0803,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}