CVE-2026-23408

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Source

https://cve.org/CVERecord?id=CVE-2026-23408

Import Source

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2026-23408

Downstream

Published

2026-04-01T08:36:37.873Z

Modified

2026-04-03T11:03:46.624549Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

apparmor: Fix double free of ns_name in aa_replace_profiles()

Details

In the Linux kernel, the following vulnerability has been resolved:

apparmor: Fix double free of nsname in aareplace_profiles()

if nsname is NULL after 1071 error = aaunpack(udata, &lh, &ns_name);

and if ent->nsname contains an nsname in 1089 } else if (ent->ns_name) {

then nsname is assigned the ent->nsname 1095 nsname = ent->nsname;

however ent->nsname is freed at 1262 aaloadentfree(ent);

and then again when freeing nsname at 1270 kfree(nsname);

Fix this by NULLing out ent->nsname after it is transferred to nsname

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23408.json",
    "cna_assigner": "Linux"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

145a0ef21c8e944957f58e2c8ffcd8a10f46266a

Fixed

55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a

Fixed

86feeccd6b93ed94bd6655f30de80f163f8d5a45

Fixed

7998ab3010d2317643f91828f1853d954ef31387

Fixed

18b5233e860c294a847ee07869d93c0b8673a54b

Fixed

5df0c44e8f5f619d3beb871207aded7c78414502

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23408.json"

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23408.json"