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In languages like C, buffer overflows are widespread. A common mitigationtechnique is to use tools that detect them during execution and abort theprogram to prevent the leakage of data or the diversion of control flow.However, for server applications, it would be desirable to prevent such errorswhile maintaining availability of the system. To this end, we present anapproach to handle buffer overflows without aborting the program. This approachinvolves implementing a continuation logic in library functions based on anintrospection function that allows querying the size of a buffer. Wedemonstrate that introspection can be implemented in popular bug-finding andbug-mitigation tools such as LLVM's AddressSanitizer, SoftBound, andIntel-MPX-based bounds checking. We evaluated our approach in a case study ofreal-world bugs and show that for tools that explicitly track bounds data,introspection results in a low performance overhead.

Context-aware Failure-oblivious Computing as a Means of Preventing Buffer Overflows