[Security] [PATCH 00/20] world-writable files in sysfs and debugfs

On Mon, Mar 14, 2011 at 10:26:05PM -0400, James Bottomley wrote:

On Sat, 2011-03-12 at 23:23 +0300, Vasiliy Kulikov wrote:

quoted

quoted

Vasiliy Kulikov (20):
 mach-ux500: mbox-db5500: world-writable sysfs fifo file
 leds: lp5521: world-writable sysfs engine* files
 leds: lp5523: world-writable engine* sysfs files
 misc: ep93xx_pwm: world-writable sysfs files
 rtc: rtc-ds1511: world-writable sysfs nvram file
 scsi: aic94xx: world-writable sysfs update_bios file
 scsi: iscsi: world-writable sysfs priv_sess file

These are still not merged :(

OK, so I've not been tracking where we are in the dizzying ride on
security systems.  However, I thought we landed up in the privilege
separation arena using capabilities.  That means that world writeable
files aren't necessarily a problem as long as the correct capabilities
checks are in place, right?

There are no capability checks on sysfs files right now, so these all
need to be fixed.

thanks,

greg k-h