Rust and C filesystem APIs
As the Rust-for-Linux project advances, the kernel is gradually accumulating abstraction layers that enable Rust code to interface with the existing C code. As the discussion around the set of filesystem abstractions posted by Wedson Almeida Filho in December shows, though, there is some tension between two approaches to the design of those abstractions. The approach favored by most of the kernel'
OpenBSD system-call-origin verification
A new mechanism to help thwart return-oriented programming (ROP) and similar attacks has recently been added to the OpenBSD kernel. It will block system calls that are not made via the C library (libc) system-call wrappers. Instead of being able to string together some "gadgets" that make a system call directly, an attacker would need to be able to call the wrapper, which is normally at a randomiz
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