CVE-2026-80757None▾ SunlitIn 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'…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 2002ff745db64ac83ee1bb9ff78196d2d68bfdb3Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 38d91446630a20ce8c2a981810deea81fd61a3b5Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 638213f2e6ea52c06a25861616781338d154db35Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < a63011c009ea79439b800a05602b880eb4adbb05Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < acd5b09be98fd38b7392307880156fb0452a7276Linux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 1b995966c3ae5244751bdaee9bfe7e17567d4fbeLinux >= 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 < 9a82dcd98b6e6e11cfd162410967951f12152528Linux 2.6.23Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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