Messages in this thread |  | | Date | Mon, 07 Nov 2011 11:18:32 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] proc: restrict access to /proc/interrupts |
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On 11/07/2011 11:01 AM, Vasiliy Kulikov wrote: > > What's wrong with old good DAC? You can create a group "sysinfo", do > "chown sysinfo /proc/interrupts", and add the permitted users to the > group. If you need to give different access levels to different interrupts, > you need another /proc/interrupts design, it does nothing with DAC vs. LSM. >
I would like to propose that we add a mount option to procfs, and possibly sysfs, called, say, admingrp. These kinds of files then get restricted to the admingrp (defaulting to gid 0 if no admingrp is provided). Historically on Unix there has been a group of people (usually "adm", but sometimes "log") who are allowed to read (but not write) the log files, which also contains potentially sensitive information.
The current Linux trend seems to be do instead force those users to become root constantly, which is *not* helping the situation.
-hpa
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