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Quote: Multics avoids buffer overflow -- PL/I strings have a fixed maximum length; data can not be executed; virtual addresses are segmented; stacks grew up instead of down
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Group:
memory management
Topic:
security leaks and weaknesses
Topic:
stacks
Topic:
strings
Quotation Skeleton
PL/I character strings may be either fixed length … in an argument descriptor or in another variable … The net result is that a PL/I programmer … [Multics runtime] could detect mismatches between calling and called … Multics used the hardware execute permission bits to … data, denying execute permission to data is a … Multics virtual addresses are segmented … an overflow off the end of a segment … stacks on the Multics processor grew in a … This meant that if you actually accomplished a … Google-1 Google-2
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Group: memory management (11 topics, 346 quotes)
Topic: security leaks and weaknesses (56 items)
Topic: stacks (6 items)
Topic: strings (13 items)