Re: procfs permissions on 2.6.x

From: Clemens Schwaighofer
Date: Sun Jul 04 2004 - 20:52:51 EST


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viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:
| On Sun, Jul 04, 2004 at 02:55:42PM -0700, Andrew Morton wrote:
|
|>Some do. On my test box 1000-odd /proc inodes get allocated and fully
|>freed on each `ls -R /proc'. 65 /proc inodes are freed during `ls -lR
|>/proc/net'. So maybe it isn't working completely.
|>
|>But proc_notify_change() copies the inode's uid, gid and mode into the
|>proc_dir_entry, so they get correctly initialised when the inode is
|>reinstantiated, so afaict we have no bug here.
|
|
| Why on the earth do we ever want to allow chown/chmod on procfs in the
first
| place?

Well perhaps I am on the wrong track but eg /proc/bus/usb/002/005 is my
digital camera and unless its either world rw or owned by me (user) I
can't get any pictures unless I make myself root.

So yes, I would want to have chown/chmod in procfs ...

- --
Clemens Schwaighofer - IT Engineer & System Administration
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