CVE-2026-23408
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
")
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689 | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < c053ae381ce227577567d1ef10090ce7506d7a28 | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 35f4caec1352054b9a61cfdf2bf1898073637aa0 | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 86feeccd6b93ed94bd6655f30de80f163f8d5a45 | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 7998ab3010d2317643f91828f1853d954ef31387 | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 18b5233e860c294a847ee07869d93c0b8673a54b | affected |
| Linux | Linux | 145a0ef21c8e944957f58e2c8ffcd8a10f46266a < 5df0c44e8f5f619d3beb871207aded7c78414502 | affected |
| Linux | Linux | 5.5 | affected |
| Linux | Linux | 0 < 5.5 | unaffected |
| Linux | Linux | 5.10.253 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.203 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.169 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.130 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.77 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.18 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.8 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/c6347a2116ecccb8fd9ee4ebc75ae41d1d7ef689
- https://git.kernel.org/stable/c/c053ae381ce227577567d1ef10090ce7506d7a28
- https://git.kernel.org/stable/c/35f4caec1352054b9a61cfdf2bf1898073637aa0
- https://git.kernel.org/stable/c/55ef2af7490aaf72f8ffe11ec44c6bcb7eb2162a
- https://git.kernel.org/stable/c/86feeccd6b93ed94bd6655f30de80f163f8d5a45
- https://git.kernel.org/stable/c/7998ab3010d2317643f91828f1853d954ef31387
- https://git.kernel.org/stable/c/18b5233e860c294a847ee07869d93c0b8673a54b
- https://git.kernel.org/stable/c/5df0c44e8f5f619d3beb871207aded7c78414502
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.