mailing list archives
Re: CVE Request -- kernel: futex: clear robust_list on execve
From: Petr Matousek <pmatouse () redhat com>
Date: Thu, 5 Jan 2012 16:50:11 +0100
On Thu, Jan 05, 2012 at 05:33:47AM -1000, akuster wrote:
Could it be said that this issue was introduced by these two commits in
On 01/04/2012 12:10 PM, Petr Matousek wrote:
Move "exit_robust_list" into mm_release() and clear them
We don't want to get rid of the futexes just at exit() time, we want to
drop them when doing an execve() too, since that gets rid of the
previous VM image too.
Doing it at mm_release() time means that we automatically always do it
when we disassociate a VM map from the task.
Petr Matousek / Red Hat Security Response Team