We created a dynamic compiler called Caracal that translates applications with unstructured control flow so they can run on hardware that requires structured programs. In order to accomplish this, Caracal builds a control tree of the program and creates single-entry, single-exit regions called ...
Some implementations can support unstructured control flow based on branches and labels; others are based on structured control flow relying solely on if-then and while constructs. In this paper we describe a tool that can be used to analyze the difference between these two approaches. We created...
We formally verify a subset of KCoFI's design by modeling several features in small-step semantics and providing a partial proof that the semantics maintain control-flow integrity. The model and proof account for operations such as page table management, trap handlers, context switching, and ...
Control flow error detection method, data processing apparatus, and compiler A program to be executed by a computer is divided into a plurality of code blocks, and, a unique code block ID is allotted to each code block. At the momen... 遠藤 隆,大河内 俊夫,渡邊 高志,... 被引量: 0发...
We use a systematic bit-flip analysis to identify the exact locations susceptible to control-flow errors in a given program. This helps us to instrument the code with minimal overheads, while maintaining high-level of correct-ability and low recovery times. Our experiments show that using the ...
Intel has been actively collaborating with Microsoft and other industry partners to address control-flow hijacking by using Intel’s CET technology to augment the previous software-only control-flow integrity solutions. Intel’s CET, when used properly by software, is a big step in helping ...
Control flow relations in a high level language program can be represented by a hierarchy of small graphs that combines nesting relations among statements in an ALGOL-like syntax with relevant perturbations caused by goto or leave statements. Applications of the new style of representation include den...
If all applications worked like this, then you would be very limited in what you could do. This chapter describes two methods for controlling program flow—that is, the order of execution of lines of C# code; branching and looping. Branching executes code conditionally, depending on the ...
Please refer to the:doc:`design document<ControlFlowIntegrityDesign>`. Publications Control-Flow Integrity: Principles, Implementations, and Applications. Martin Abadi, Mihai Budiu, Úlfar Erlingsson, Jay Ligatti. Enforcing Forward-Edge Control-Flow Integrity in GCC & LLVM. Caroline Tice, Tom Roede...
As part of our ongoing efforts towards safer systems programming, we’re pleased to announce that Windows Control Flow Guard (CFG) support is now available in the Clang C/C++ compiler and Rust. What is Control Flow Guard? CFG is a platform security technology designed to enforce control ...