CVE-2026-23405
Published: Apr 1, 2026
Modified: May 11, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix: limit the number of levels of policy namespaces Currently the number of policy namespaces is not bounded relying on the user namespace limit. However policy namespaces aren't strictly tied to user namespaces and it is possible to create them and nest them arbitrarily deep which can be used to exhaust system resource. Hard cap policy namespaces to the same depth as user namespaces.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 - < 6b396cc2f0365e684fc1d3547d18ef79fcee225daffected c88d4c7b049e87998ac0a9f455aa545cc895ef92 - < 87d0cecc900e55d55fc4dbfb43ac93e269c7a5b3affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 - < b1226e37eb3754d389721c135db6107db94c7a72affected c88d4c7b049e87998ac0a9f455aa545cc895ef92 - < 3f8699b3ee0c04b4b9bc27b82cd89a40e81e1d2eaffected c88d4c7b049e87998ac0a9f455aa545cc895ef92 - < 853ce31ca72097d23991a06876a2ccb5cb64b603+3 more versions |
Linux | Linux | affected 2.6.36unaffected 0 - < 2.6.36unaffected 5.10.253 - <= 5.10.*unaffected 5.15.203 - <= 5.15.*unaffected 6.1.169 - <= 6.1.*+5 more versions |
References
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