Re: [PATCH] apparmor: fix cred UAF caused by begin_current_label_crit_section()
Jann Horn via AppArmor <[email protected]>
| Newsgroups | gmane.comp.security.apparmor,gmane.linux.kernel.stable,gmane.linux.kernel,gmane.linux.kernel.lsm |
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| Message-ID | <CAG48ez31uJ1utneG2VepgkpYp-zpmypoBJ5TTXOxiPLrZsXTrQ@mail.gmail.com> |
On Tue, Jul 14, 2026 at 5:39 PM Jann Horn <[email protected]> wrote: > AppArmor's begin_current_label_crit_section() is a scary function called > from lots of LSM hooks (in particular VFS/socket-related ones) that checks > if the label referenced by the current creds is marked FLAG_STALE, and if > so, attempts to use aa_replace_current_label() to replace the creds with an > updated version that uses a new label. ping, I've seen no activity on this fix since posting it