CVE-2026-80757selinux: reject a class permission count below its inherited common
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 8 days later
· 8 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 2002ff745db64ac83ee1bb9ff78196d2d68bfdb3
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 38d91446630a20ce8c2a981810deea81fd61a3b5
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 638213f2e6ea52c06a25861616781338d154db35
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < a63011c009ea79439b800a05602b880eb4adbb05
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < acd5b09be98fd38b7392307880156fb0452a7276
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 1b995966c3ae5244751bdaee9bfe7e17567d4fbe
- affected 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 – < 9a82dcd98b6e6e11cfd162410967951f12152528
- affected 2.6.23
- unaffected < 2.6.23
- unaffected 5.10.266 – ≤ 5.10.*
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.184 – ≤ 6.1.*
- unaffected 6.6.153 – ≤ 6.6.*
- unaffected 6.12.105 – ≤ 6.12.*
- unaffected 6.18.46 – ≤ 6.18.*
- unaffected 7.1.10 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/2002ff745db64ac83ee1bb9ff78196d2d68bfdb3 (opens in a new tab)
- https://git.kernel.org/stable/c/38d91446630a20ce8c2a981810deea81fd61a3b5 (opens in a new tab)
- https://git.kernel.org/stable/c/638213f2e6ea52c06a25861616781338d154db35 (opens in a new tab)
- https://git.kernel.org/stable/c/2b7ffd7921fcbfe408fb7b372e47454e45b1e6a7 (opens in a new tab)
- https://git.kernel.org/stable/c/a63011c009ea79439b800a05602b880eb4adbb05 (opens in a new tab)
- https://git.kernel.org/stable/c/acd5b09be98fd38b7392307880156fb0452a7276 (opens in a new tab)
- https://git.kernel.org/stable/c/1b995966c3ae5244751bdaee9bfe7e17567d4fbe (opens in a new tab)
- https://git.kernel.org/stable/c/9a82dcd98b6e6e11cfd162410967951f12152528 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-70361 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80757)Record last updated .