CVE-2026-72460

HighCVSS 7.1

Published: 15/08/2026(UTC)Updated: 17/08/2026(UTC)Translated: 15/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.13%

3th percentile - higher than 3% of all known CVEs

Summary

In the Linux kernel's AppArmor module, a vulnerability exists where the label build is checked before the no_new_privs test. aa_change_profile() builds a replacement label that can return NULL or ERR_PTR, but the result is passed to aa_label_is_unconfined_subset() before the IS_ERR_OR_NULL() check, potentially dereferencing an invalid label.

Risk Assessment

This could lead to system crashes or unauthorized privilege changes.

Recommendation

Apply a Linux kernel update containing the fix that reuses the existing target-label build failure handling immediately after the build.

Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: apparmor: check label build before no_new_privs test aa_change_profile() builds a replacement label with fn_label_build_in_scope() before the no_new_privs subset check. The build helper can fail and return NULL or an ERR_PTR, but the result was passed to aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL() check. Reuse the existing target-label build failure handling immediately after the build. This preserves the current audit handling while preventing the subset helper from dereferencing an invalid label.