Re: false asumption or security flaw? (fwd)

[James Stevenson <mistral@stevenson.zetnet.co.uk>]

Hi

the reson why the program will not dump is becuase it is done by a 4k
page system and the page has not been freed by the proggram because it
probably has something else in it and then the same page will not be
alloced to another process

somebody please correct me if i am wrong :)

cya
	James

> On Thu, 24 Aug 2000, Tim Robbins wrote:
> 
> 
> the fact that i have freed the memory pointed by 'x', but still "legally" 
> can be accessed by the reference variable 'a' (shown by the no dumping
> off the program)  should imply that this piece of memory can be allocated
> not only to one user/process but also many user/process which can be
> devestating in effect!
> 
> i don't know much about how the kernel manages the memory areas to the
> users/processes, so may be a knowledge about how the kernel does things
> in the memory would be helpful here. hints from the experts, please :)
> 

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