Memory corruption

Article summary

Memory corruption occurs in a computer program when the contents of a memory location are modified due to programmatic behavior that exceeds the intention of the original programmer or program/language constructs; this is termed as violation of memory safety. The most likely causes of memory corruption are programming errors (software bugs). When the corrupted memory contents are used later in that program, it leads either to program crash or to strange and bizarre program behavior. Nearly 10% of application crashes on Windows systems are due to heap corruption. Modern programming languages like C and C++ have powerful features of explicit memory management and pointer arithmetic. These features are designed for developing efficient applications and system software. However, using these features incorrectly may lead to memory corruption errors. Memory corruption is one of the most intractable class of programming errors, for two reasons: #The source of the memory corruption and its manifestation may be far apart, making it hard to correlate the cause and the effect. #Symptoms appear under unusual conditions, making it hard to consistently reproduce the error. Memory corruption errors can be broadly classified into four categories: #Using uninitialized memory: Contents of uninitialized memory are treated as garbage values.…

Key claims

No claims recorded.

Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

No sources recorded.