Re: fork() DoS?

From: Philip R. Auld (prauld@egenera.com)
Date: Fri Mar 22 2002 - 10:24:23 EST


"Little, John" wrote:
>
> I'm really not a programmer, just learning, but was able to bring the system
> to it's knees. This is a redhat 7.2 kernel. Is there anyway of preventing
> this?

Use resource limits on users and don't run fork bombs as root :)

>
> #include <unistd.h>
>
> void do_fork()
> {
> pid_t p;
>
> p = fork();
> do_fork();
> }
>
> void main()
> {
> for(;;)
> do_fork();
> }
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/

-- 
Philip R. Auld, Ph.D.                  Technical Staff 
Egenera Corp.                        pauld@egenera.com
165 Forest St., Marlboro, MA 01752       (508)786-9444
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Mar 23 2002 - 22:00:27 EST