AZL-99443
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99443.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-99443
- Upstream
- Published
- 2026-09-04T18:18:01Z
- Modified
- 2026-09-06T05:31:44Z
- Summary
- CVE-2026-80912 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
selinux: reject an unclaimed class value in securitygetclasses()
securitygetclasses() sizes an array by pclasses.nprim and fills it at value - 1, so a class value the policy never defines leaves a NULL. selmakeclasses() passes every entry to selmakedir(), reaching the same dallocname() dereference as the permission array. The class symbol table is allowed to be sparse (policydbclass_isvalid() exists to absorb that), but this getter builds its own array straight from the hash table and has no such predicate.
Fail the lookup when a value went unclaimed instead of handing out the NULL. Conforming policies define every class they declare and are unaffected.
- References