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Additional
protected memory
English Wikipedia - The Free Encyclopedia
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Memory protection
Memory protection
is a way to control memory access rights on a computer, and is a part of most modern
processor architectures
and
operating systems
. The main purpose of memory protection is to prevent a
process
from accessing memory that has not been allocated to it. This prevents a bug or
malware
within a process from affecting other processes, or the operating system itself. An attempt to access unowned memory results in a hardware
fault
, called a
segmentation fault
or
storage violation
exception, generally causing
abnormal termination
of the offending process. Memory protection for
computer security
includes additional techniques such as
address space layout randomization
and
executable space protection
.
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