Answer in brief
CVE-2026-80757 records a Unknown severity vulnerability in selinux: reject a class permission count below its inherited common. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <2002ff745db64ac83ee1bb9ff78196d2d68bfdb3 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <38d91446630a20ce8c2a981810deea81fd61a3b5 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <638213f2e6ea52c06a25861616781338d154db35 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <a63011c009ea79439b800a05602b880eb4adbb05 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <acd5b09be98fd38b7392307880156fb0452a7276 || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <1b995966c3ae5244751bdaee9bfe7e17567d4fbe || >=55fcf09b3fe4325c9395ebbb0322a547a157ebc7 <9a82dcd98b6e6e11cfd162410967951f12152528 | 2002ff745db64ac83ee1bb9ff78196d2d68bfdb3, 38d91446630a20ce8c2a981810deea81fd61a3b5, 638213f2e6ea52c06a25861616781338d154db35, 2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7, a63011c009ea79439b800a05602b880eb4adbb05, acd5b09be98fd38b7392307880156fb0452a7276, 1b995966c3ae5244751bdaee9bfe7e17567d4fbe, 9a82dcd98b6e6e11cfd162410967951f12152528 |
| Linux/Linuxgeneric | 2.6.23 | Not reported |
Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 3, 2026
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.
Quoted source text, attributed separately from HOL analysis.