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ALAS2-2024-2435 --- pam
A vulnerability was found in Linux PAM. An unprivileged user that is not yet in a corresponding mount namespace with ~/tmp mounted as a polyinstantiated dir can place a FIFO there, and a subsequent attempt to login as this user with `pam_namespace` configured will cause the `openat` in `protect_dir` to block the attempt, causing a local denial of service
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