CVE-2026-80757: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: selinux: reject a class permission count below its inherited common security_get_permissions() maps an inherited common's permissions into an array sized by the class's own permissions.nprim, but class_read() takes that nprim verbatim from the policy image and never checks that it covers the common. A class that inherits a common of N permissions while declaring a smaller nprim is accepted, and on load the common's permissions are written past the class-sized array -- an out-of-bounds heap write. Reject a class whose permission count is below its inherited common's. Well-formed policies, where the class count already includes the inherited permissions, are unaffected.

Засегнати продукти

• Linux Linux: 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 2002ff745db64ac83ee1bb9ff78196d2d68bfdb3; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 38d91446630a20ce8c2a981810deea81fd61a3b5; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 638213f2e6ea52c06a25861616781338d154db35; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди a63011c009ea79439b800a05602b880eb4adbb05; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди acd5b09be98fd38b7392307880156fb0452a7276; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 1b995966c3ae5244751bdaee9bfe7e17567d4fbe; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 9a82dcd98b6e6e11cfd162410967951f12152528
• Linux Linux: 2.6.23; преди 2.6.23; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; 7.2 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80757
• https://nvd.nist.gov/vuln/detail/CVE-2026-80757
• https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3
• https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5
• https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35
• https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7
• https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05
• https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276
• https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe
• https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528