FAQ Search Today's Posts Mark Forums Read
» Video Reviews

» Linux Archive

Linux-archive is a website aiming to archive linux email lists and to make them easily accessible for linux users/developers.


» Sponsor

» Partners

» Sponsor

Go Back   Linux Archive > Ubuntu > Ubuntu Kernel Team

 
 
LinkBack Thread Tools
 
Old 05-04-2010, 05:02 PM
Tim Gardner
 
Default LP#568844 -- allow reading of /proc/mmap_min_addr

On 05/04/2010 05:45 PM, Andy Whitcroft wrote:
> A number of applications need to be able read mmap_min_addr in order to
> determine where they should map segments. The permissions on the proc file
> imply that read should be possible but read is prevented by capabilities.
> As it is possible for an attacker to determine the current setting by
> repeated attempts to map low pages pages there is no point protecting this
> information.
>
> The following patch has been submitted upstream and in the security-testing
> tree. Proposing this for Maverick and SRU to Lucid.
>
> -apw
>
> Kees Cook (1):
> UBUNTU: SAUCE: mmap_min_addr check CAP_SYS_RAWIO only for write
>
> security/min_addr.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>

Acked-by: Tim Gardner <tim.gardner@canonical.com>

--
Tim Gardner tim.gardner@canonical.com

--
kernel-team mailing list
kernel-team@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/kernel-team
 

Thread Tools




All times are GMT. The time now is 11:54 PM.

VBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright 2007 - 2008, www.linux-archive.org