Re: false asumption or security flaw?

["Mike Black" <mblack@csihq.com>]

Some machines have the first 256 bytes open to read but not write (no
segmentation fault either).
Others will segfault trying to even read the first 256 bytes.
I forget which architectures do this but I ran into the problem a few years
ago when porting code from one platform to another.

________________________________________
Michael D. Black   Principal Engineer
mblack@csihq.com  321-676-2923,x203
http://www.csihq.com  Computer Science Innovations
http://www.csihq.com/~mike  My home page
FAX 321-676-2355
----- Original Message -----
From: "johan '97" <joe197@puspa.cs.ui.ac.id>
To: <kernel-audit@nl.linux.org>
Sent: Thursday, August 24, 2000 3:05 AM
Subject: false asumption or security flaw?


hi,

could anyone tell me why does this piece of code does not dump?
<start>

#include <stdio.h>
#include <stdlib.h>
main()
{
int *x=(int*)malloc(sizeof(int));
*x=8;

int &a=(*x);

printf("\na dan x : %d %d", a, *x);

a = 9;

printf("\na dan x : %d %d", a, *x);

free(x);

a=5;

return 0;
}

<end>

could it be a security flaw in the kernel?

thanx

johan
surrendered, i have


Kernel-audit:  discussion list for security and the linux kernel
Archive:       http://mail.nl.linux.org/kernel-audit/


Kernel-audit:  discussion list for security and the linux kernel
Archive:       http://mail.nl.linux.org/kernel-audit/