tree f3eedc38f7e5b6012d053e6c05ad2df3975f4c08
parent ad36d28293936b03d6b7996e9d6aadfd73c0eb08
author Richard Guy Briggs <rgb@redhat.com> 1386731441 -0500
committer Eric Paris <eparis@redhat.com> 1395324715 -0400

audit: convert PPIDs to the inital PID namespace.

sys_getppid() returns the parent pid of the current process in its own pid
namespace.  Since audit filters are based in the init pid namespace, a process
could avoid a filter or trigger an unintended one by being in an alternate pid
namespace or log meaningless information.

Switch to task_ppid_nr() for PPIDs to anchor all audit filters in the
init_pid_ns.

(informed by ebiederman's 6c621b7e)
Cc: stable@vger.kernel.org
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>