lkml.org 
[lkml]   [2000]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectSecurity exploit in shmfs?
  Hi, all. It looks like there is a potential security hole in the new
shmfs code. In ipc/shm.c:sys_shmat() the root directory is temporarily
changed for a while. A CLONE_FS clone can then come in and take
advantage of this exposure. This needs to be fixed.
This is in 2.3.99-pre2.

Frankly, I'd rather see the old SysV IPC code restored, especially
since we're so close to 2.4. At least it's a known quantity.

Regards,

Richard....
Permanent: rgooch@atnf.csiro.au
Current: rgooch@ras.ucalgary.ca

-
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 13:57    [W:0.481 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site