CVE-2026-80912

Not enough EPSS history yet.

In the Linux kernel, the following vulnerability has been resolved: selinux: reject an unclaimed class value in security_get_classes() security_get_classes() sizes an array by p_classes.nprim and fills it at value - 1, so a class value the policy never defines leaves a NULL. sel_make_classes() passes every entry to sel_make_dir(), reaching the same d_alloc_name() dereference as the permission array. The class symbol table is allowed to be sparse (policydb_class_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.

• git.kernel.orghttps://git.kernel.org/stable/c/099869e9343a5f8c22b58497f074b34f63cbf856
• git.kernel.orghttps://git.kernel.org/stable/c/22b05fec62c0fe9864cfceb52f7d0f3a34d9b1dd
• git.kernel.orghttps://git.kernel.org/stable/c/841aea4d5a25e16273d04cd07a74142b4687e03b
• git.kernel.orghttps://git.kernel.org/stable/c/d8a10899ea3c84b80de72ca8ee9039e9a5156c9a
• git.kernel.orghttps://git.kernel.org/stable/c/e0285bb152211c00900136b66d4b420c14a59094

No related CVEs by CWE or product.