linux-kernel - Re: Sysctl syscall

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Message-Id: <200611171023.45595.ak@suse.de>
Date:	Fri, 17 Nov 2006 10:23:45 +0100
From:	Andi Kleen <ak@...e.de>
To:	Hasso Tepper <hasso@...pak.ee>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Sysctl syscall

On Friday 17 November 2006 09:07, Hasso Tepper wrote:

> I have process which drops root privileges after startup and retains only 
> some privileges using CAP_NET_ADMIN and CAP_SYS_ADMIN capabilities.
> I can change values in /proc/sys/net/ipv[46]/* (like turning forwarding 
> on/off) from this process using sysctl syscall, but I can't write 
> directly into /proc/sys/net/ipv[46]/* from it.

That sounds more like a security bug than a feature to be preserved.

-Andi 
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