CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: sysctl: move the "cad_pid" entry from pid_table[] to kern_reboot_table[] cad_pid is global, and kill_cad_pid() is only used in the root namespace. However, due to pid_table_root_permissions(), a non-root user can unshare pid/user namespaces and modify it from the child namespace. This makes no sense and is simply wrong. Move it to kern_reboot_table[] where it logically belongs; this ensures that only GLOBAL_ROOT_UID can read/modify this sysctl. Note that this patch doesn't preserve "#ifdef CONFIG_PROC_SYSCTL" around the "cad_pid"; CONFIG_PROC_SYSCTL selects CONFIG_SYSCTL, so it is always set when kern_reboot_table[] is compiled.
Засегнати продукти
- Linux Linux: e054bcbe7e7af2baad3752f1a4916a7fffc0457e преди e8527de7fea191fda704792a56081f9009aeec37; e054bcbe7e7af2baad3752f1a4916a7fffc0457e преди a09bc4eaa67e1a72df3b6d0beb3afeef1e1fdfcd; e054bcbe7e7af2baad3752f1a4916a7fffc0457e преди 7170ca01623b399c97f2ae9d3e228badc1f25ea3
- Linux Linux: 6.17; преди 6.17; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък
История
- 11 септември 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-80929
- https://nvd.nist.gov/vuln/detail/CVE-2026-80929
- https://git.kernel.org/stable/c/e8527de7fea191fda704792a56081f9009aeec37
- https://git.kernel.org/stable/c/a09bc4eaa67e1a72df3b6d0beb3afeef1e1fdfcd
- https://git.kernel.org/stable/c/7170ca01623b399c97f2ae9d3e228badc1f25ea3