CVE-2026-23408
apparmor: Fix double free of ns_name in aa_replace_profiles()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix double free of ns_name in aa_replace_profiles() if ns_name is NULL after 1071 error = aa_unpack(udata, &lh, &ns_name); and if ent->ns_name contains an ns_name in 1089 } else if (ent->ns_name) { then ns_name is assigned the ent->ns_name 1095 ns_name = ent->ns_name; however ent->ns_name is freed at 1262 aa_load_ent_free(ent); and then again when freeing ns_name at 1270 kfree(ns_name); Fix this by NULLing out ent->ns_name after it is transferred to ns_name ")
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.5
References 8
git.kernel.org
- stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689
- stable/c/c053ae381ce227577567d1ef10090ce7506d7a28
- stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0
- stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a
- stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45
- stable/c/7998ab3010d2317643f91828f1853d954ef31387
- stable/c/18b5233e860c294a847ee07869d93c0b8673a54b
- stable/c/5df0c44e8f5f619d3beb871207aded7c78414502