On Fri, Jan 14, 2005 at 06:45:25PM +0100, Thomas Viehmann wrote: > Hi. > > This may not be stritly on topic, but I couln't figure out a better > place to ask: > > During the packaging of an application, I have the following problem: > I would like to run a daemon as non-root. The daemon likes to > (continually) check /proc/tty/driver/usbserial to see whether or not > interesting USB devices are connected. The permissions of this actual > file is (on a kernel compiled from Debian's kernel-source-2.6.10) 0444, > so this isn't a problem. However, the parent directory /proc/tty/driver > is 0500. I'm not sure whether this is related to Debian DSAs 358 or 423 > (where /proc/tty/driver/serial is mentioned as leaking sensitive > information), to me the contents of usbserial look innocent enough. > Do you have any hints on what might be a good solution?
The permissions on the directory look indeed too strict to me. It might be better to just use strict permissions on /proc/tty/driver/serial indeed. Counter-question: What information is available in /proc/tty/driver/usbserial but not in sysfs? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
