CVE-2026-90231: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix unconfined user namespace restriction forced stack If a task is already confined by a stack the unprivileged transition restriction on unconfined is not correctly, applied. This results in an escape if two transitions through an unconfined profile can be executed. Fix this by pushing the check into the per profile label build. The check will always be done against unconfined and result in a stack of just the unconfined component when necessary.

Засегнати продукти

• Linux Linux: 2d9da9b188b8cd3b579d7ef5ba5d334be9dd38fc преди fdd341654471cae4fbd9635d32b848cd0c8bc437; 2d9da9b188b8cd3b579d7ef5ba5d334be9dd38fc преди 7d1099b86356df81c379159bfb8a598aaf83ce81; 2d9da9b188b8cd3b579d7ef5ba5d334be9dd38fc преди 7da0bdf0610f6d35bbb061536a47fc41646306f0; 2d9da9b188b8cd3b579d7ef5ba5d334be9dd38fc преди 08c2f7c8d4b1434cfae006f3daf4d1bce330b57b
• Linux Linux: 6.7; преди 6.7; 6.12.114 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90231
• https://nvd.nist.gov/vuln/detail/CVE-2026-90231
• https://git.kernel.org/stable/c/fdd341654471cae4fbd9635d32b848cd0c8bc437
• https://git.kernel.org/stable/c/7d1099b86356df81c379159bfb8a598aaf83ce81
• https://git.kernel.org/stable/c/7da0bdf0610f6d35bbb061536a47fc41646306f0
• https://git.kernel.org/stable/c/08c2f7c8d4b1434cfae006f3daf4d1bce330b57b