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authorJamie Gritton <jamie@FreeBSD.org>2021-02-19 22:13:35 +0000
committerJamie Gritton <jamie@FreeBSD.org>2021-02-19 22:13:35 +0000
commitd4380c0cdd0517dc038403dd5c99242ce78bdeb5 (patch)
tree7a3e2496b46683bb7ce41e27c65d3b3c77edd1ad /sys/dev
parent0f9544d03e89d180f94a7a84b110ec7d2b6c625a (diff)
downloadsrc-d4380c0cdd0517dc038403dd5c99242ce78bdeb5.tar.gz
src-d4380c0cdd0517dc038403dd5c99242ce78bdeb5.zip
jail: Change both root and working directories in jail_attach(2)
jail_attach(2) performs an internal chroot operation, leaving it up to the calling process to assure the working directory is inside the jail. Add a matching internal chdir operation to the jail's root. Also ignore kern.chroot_allow_open_directories, and always disallow the operation if there are any directory descriptors open. Reported by: mjg Approved by: markj, kib MFC after: 3 days
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