| Headlines |
| 2025-11-10 |
NetBSD may soon have a new sandboxing option |
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The NetBSD project may soon be gaining new sandboxing features, thanks to a Summer of Code project. Vasyl Lanko provides some background on this effort: "As of the time of writing, there is no real sandboxing technique available to NetBSD. There is chroot, which can be considered a weak sandbox because it modifies the root directory of the process, effectively restricting the process' view of the file system, but it doesn't isolate anything else, so all networking, IPC, and mounts inside this restricted file system are the same as of the system, and are accessible.
There has already been some research on implementing kernel-level isolation in NetBSD with tools like gaols, mult and netbsd-sandbox, but they haven't been merged to NetBSD. Other operating systems have their own ways to isolate programs, FreeBSD has jails, and Linux has namespaces.
The goal of this project is to bring a new way of sandboxing to NetBSD. More specifically, we want to implement a mechanism like Linux namespaces. These namespaces allow the isolation of parts of the system from a namespace, or, as the user sees it, from an application." Details on bringing sandboxing to NetBSD can be found in Lanko's report.
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