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Date: Fri, 22 Mar 2002 10:24:23 -0500
From: "Philip R. Auld" <prauld@egenera.com>
Organization: Egenera Inc.
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To: "Little, John" <JOHN.LITTLE@okdhs.org>
Cc: "'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>
Subject: Re: fork() DoS?
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"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();
> }
> 
> -
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-- 
Philip R. Auld, Ph.D.                  Technical Staff 
Egenera Corp.                        pauld@egenera.com
165 Forest St., Marlboro, MA 01752       (508)786-9444
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