lkml.org 
[lkml]   [1999]   [Sep]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: only root has acces to /dev/mem ?
Date
From
> sine i am using 2.2.12 i had no permissions to write on /dev/mem
> i belong to the group kmem who has +rw on it i cann't write
> when i chown it the user cann't still write on it
> only root can??
> was it a security bug or so??

Tightening rather than anything else. You need the RAWIO capability to use
/dev/mem or /dev/kmem. You can drop all other capabilities


Alan


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:53    [W:0.035 / U:1.876 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site