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Typeof (Using the GNU Compiler Collection (GCC))| gcc.gnu.org
In the second article, a ring-3 PoC is built by removing each SystemTap script line one-by-one. It explains how to find and tailor syscalls to force the kernel into particular code paths as well as unconditionally win the race condition. The core concept section focuses on the scheduler subsystem (task states and wait queues).| blog.lexfo.fr
In the last article, the arbitrary call primitive is used to gain arbitrary code execution in ring-0 while bypassing SMEP. It covers an extensive study of page fault exception trace, how to find gadgets in kernel image, designing a ROP-chain to finally call the payload. In the end, it shows how to repair the kernel and gain root privileges. The core concept section focuses on the thread_info structure, virtual memory layout and netlink's hash tables.| blog.lexfo.fr
The System V Application Binary Interface is a set of specifications that detail calling conventions, object file formats, executable file formats, dynamic linking semantics, and much more for systems that complies with the X/Open Common Application Environment Specification and the System V Interface Definition. It is today the standard ABI used by the major Unix operating systems such as Linux, the BSD systems, and many others. The Executable and Linkable Format (ELF) is part of the System ...| wiki.osdev.org