Make TASKSTATS require root access
authorLinus Torvalds <torvalds@linux-foundation.org>
Tue, 20 Sep 2011 00:04:37 +0000 (17:04 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 20 Sep 2011 00:04:37 +0000 (17:04 -0700)
commit1a51410abe7d0ee4b1d112780f46df87d3621043
treefc8a3d70b9fca3692e33e528a420eae1e5407850
parentb6a68a5ba4a5111379625d6d921e1c24fc17dc3a
Make TASKSTATS require root access

Ok, this isn't optimal, since it means that 'iotop' needs admin
capabilities, and we may have to work on this some more.  But at the
same time it is very much not acceptable to let anybody just read
anybody elses IO statistics quite at this level.

Use of the GENL_ADMIN_PERM suggested by Johannes Berg as an alternative
to checking the capabilities by hand.

Reported-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Johannes Berg <johannes.berg@intel.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/taskstats.c