Low entropy: heap 13 bit, mmap 16 bit, stack 24 bit ... of stack, heap, and mmap()-ed regions. Mitigates attacks on the stack , heap, and shared library ...
Title: Education and Diversity (ED) in MMAP Last modified by: William McHenry Document presentation format: On-screen Show Company: Colorado State University
The mmap()' system-call creates a new region in the task's virtual memory map, ... and grabber2.cpp' demo-programs which will grab' a screen-image and write it out ...
... actually call the mmap() file operation to attach the vm_operations for the vma ... determine if the vma that contains the faulting page has swapin() vm_operation ...
VMA. VMA. VMA. VMA. VMA. mm_struct. task_struct *mm *mmap ... Demo vma.c' module. Creates a pseudo-file: /proc/vma. Lets user see the list of VMAs for a task ...
The vm operation contains a nopage( ) which is called when page fault occurs ... construct a vma. insert the vma- vm_op by calling file- f_op- mmap ...
mmap() system call allows part of a file or the memory residing on a device to ... int hippo; int giraffe=100; main() { int a,b; for(a=0;a 100;a ) int food(int koala) ...
... into the binary image was legitimate or caused by a ret-to-libc style attack. ... payload in it, and mmap that executable via a ret-to-libc attack on the process. ...
Memory Mapped Files. Using the Linux mechanism for direct ... munmap()' deletes the memory mapping. Example: look at dump.cpp' on website. Four easy steps ...
... applications: access control, malicious code, misuse and anomaly detection, etc. ... system call sequences from source code, and check for compliance at runtime. ...
CS Honors Research: Memory Mapped files in Linux. Results. Kousha Najafi. Prof: Eddie Kohler. Grad Student: Steve VanDeBogart. 6.6.08. Research Topic ...
A Sense of Self for Unix Processes. Stephanie Forrest, ... A natural immune system doesn't have a catalog of all viruses that exist ... Infamous for many ...
Drivers. Kernel. User Space. System support for improved ... Multimedia (game and video) servers. Some current areas. protocols for interactive applications ...
IPCs other than shared memory need FOUR copy ... Shared memory is the fastest IPC available. Shared Memory ... files to provide anonymous memory mappings ...
... to fix problem. Try to code a patch to fix problem ... Figure out race condition that causes timing inconsistencies. Come up with theory to fix problem ...
Improving File System Reliability with I/O Shepherding Haryadi S. Gunawi, Vijayan Prabhakaran+, Swetha Krishnan, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
Authentication and authorization are not enough to guarantee ... [2] Matt Bishop. ' Computer Security: Art and. Sciences,' Addison-Wesley Professional; ...
Memory Mapping Sarah Diesburg COP5641 Virtual Memory Area Mapping Descriptors struct vm_area_struct Represents how a region of virtual memory is mapped Members ...
Say you need to solve a problem that involves manipulating network traffic: ... Shoutouts to all contributors! Debian packagers needed ... Questions? http: ...
Title: Case Study 1: UNIX and LINUX Author: Steve Armstrong Last modified by: giovanna Created Date: 12/19/2000 2:30:09 PM Document presentation format
3. Text Categorization ... by a loud, hooting noise from his nephew Harry's room...' --- J. K. Rowling, Harry Potter and the Chamber of Secrets. 8/7/02. USENIX ...
Look for malicious or anomalous behavior. Much more fine ... IDES. High false alarm rate. 9/4/09. J. Giffin and S. Jha. 21. Specification-Based Monitoring ...
Interconnection networks are tightly coupled/short distance networks with ... VINNER End-to-end Internet communications ... QuA - Support of Quality of ...
Chapter 4 Initial Airway Management Click for Next Chapter Click for Next Chapter NOTE: This lecture is designed to convey key points of Airway Management.
Topics Motivations for VM Address translation Accelerating translation with TLBs Motivations for Virtual Memory Use Physical DRAM as a Cache for the Disk Address ...
Detection, Prevention, and Containment: A Study of grsecurity Brad Spengler http://www.grsecurity.net spender@grsecurity.net The Problem Bugs in software cause ...
Tour of the Black Holes of Computing! P6/Linux Memory System Topics P6 address translation Linux memory management Linux page fault handling Memory mapping
Given a data vector they can either apply what they ... Each command is a vector of frequencies ... Computer Security: Art and Science. [Kr03]Krishna, S. (2003) ...
Available I/O APIs and their shortcomings. Event driven programming and its challenges. ... Steals old stack. using stored context. No. Yes. Invoked via kernel upcall ...
Title: Slide 1 Author: CWI Last modified by: Peter en Cecilia Created Date: 6/26/2006 3:27:58 PM Document presentation format: On-screen Show Other titles
The I/O subsystem and various applications all tend to use their own ... To make up for immutable buffers: Create buffer aggregate abstraction (an ADT) mutable ...
Using Process-Level Redundancy to Exploit Multiple Cores for ... Vijay Janapa Reddi* Joseph Blomstedt. Daniel A. Connors. University of Colorado at Boulder, ECE ...
... right, protects programs from each other. Backing up filesystem trashes FS cache ... Permanent data written back to fs. Temporary data in main memory or swap ...
Near native performance for CPU intensive workloads. The major tradeoff ... CPU Virtualization. H/w interrupt. Interrupt reasserted. I/O Virtualization ...
comp.bugs.4bsd. The Transition of BSD to Open Source. The FreeBSD ... Four main kinds of I/Os: filesystem, character-device, block-device, socket interface ...
CCP14 (Collaborative Computation Project No 14 for. Single Crystal and ... and hexagonal X-ray powder photographs with the aid of a small computer', Anal. Chem. ...
... driver that gives applications access to our graphics frame-buffer ... You can use our fileview' utility to see the current contents of the video frame-buffer ...
Extensive documentation and examples. Interface of choice for NCL visualization ... Data from the MECCA Project. From a presentation of Jeff Kiehl (NCAR) and ...
Medicare and Medicaid Coordination of Benefits Rebecca Phillips Training Specialist Common Areas of Confusion COBRA Medicare is primary with COBRA (except for when ...