CVE-2026-90231 | BDVDB-2026-376010 Detail

Description#

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix unconfined user namespace restriction forced stack If a task is already confined by a stack the unprivileged transition restriction on unconfined is not correctly, applied. This results in an escape if two transitions through an unconfined profile can be executed. Fix this by pushing the check into the per profile label build. The check will always be done against unconfined and result in a stack of just the unconfined component when necessary.

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History#

1. Version 12026-09-17Record published in the CVE List.
2. Version 22026-10-21Most recent update recorded in the CVE List.