Re: [PATCH v2 resend] vfs: new O_NODE open flag

From: Miklos Szeredi
Date: Sat Nov 07 2009 - 02:50:32 EST

On Fri, 06 Nov 2009, ebiederm@xxxxxxxxxxxx (Eric W. Biederman wrote:
> So far no one who believes this to be a security hole has found it
> worth their while to look at nd-> in proc_pid_follow_link
> and write a patch.

A rather disgusting patch that would be. The fact is, checking
permissions on follow_link makes little to no sense. Consider
truncate(2), for example. Will we add another intent for that? I
really hope not.

I'm more and more convinced, that the current behavior is the right

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