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UT HEAPS

HEAPS ABO. UT HEAPS. This Talk Covers. Windows 2003 Windows 2003 SP2 Still most widely used windows server OS Still not a lot of heap exploits released Still not a lot of heap research released Vista -> Ben Hawkes BHUS08 Heap Explotation How the heap works Freelists vs Lookaside

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862 views • 66 slides

Security of Memory Allocators for C and C++

Security of Memory Allocators for C and C++. Yves Younan, Wouter Joosen, Frank Piessens and Hans Van den Eynden DistriNet, Department of Computer Science Katholieke Universiteit Leuven Belgium Yves.Younan@cs.kuleuven.ac.be. Overview. Introduction Attacks Memory Allocators

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569 views • 51 slides

Optimizing Malloc and Free

Optimizing Malloc and Free. Goals of This Lecture. Brief review of K&R implementation Circular linked list of free chunks, with pointer and size in header Malloc: first-fit algorithm, with splitting Free: coalescing with adjacent chunks, if they are free Limitations

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492 views • 31 slides

Thrashing and Memory Management

Thrashing and Memory Management. Thrashing. Processes in system require more memory than is there Keep throwing out page that will be referenced soon So, they keep accessing memory that is not there Why does it occur? No good reuse, past != future There is reuse, but process does not fit

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397 views • 24 slides

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Free chunks - PowerPoint PPT Presentation

UT HEAPS

Security of Memory Allocators for C and C++

Optimizing Malloc and Free

Thrashing and Memory Management