New libc malloc patch
Ulrich Spoerlein
q at galgenberg.net
Wed Nov 30 11:10:27 GMT 2005
Jason Evans wrote:
> * The virtual memory size of processes, as reported in the SIZE field by top, will appear
> astronomical for almost all processes (32+ MB). This is expected; it is merely an artifact
> of using large mmap()ed regions rather than sbrk().
Hi,
I just read that mmap() part and have to wonder: Is it possible to
introduce something like the guard pages that OpenBSD has implemented?
I'd love to try this out and see the dozens of applications that fail
due to off-by-one bugs.
If the security features of OpenBSDs new malloc() could be implemented
as new MALLOC_OPTIONS directives, that would be fantastic!
Ulrich Spoerlein
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Ok, which part of "Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn."
didn't you understand?
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