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Subject[PATCH 0/5][RFC][v2] steps to make audit pid namespace-safe
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This patchset is a revival of some of Eric Biederman's work to make audit
pid-namespace-safe.

In a couple of places, audit was printing PIDs in the task's pid namespace
rather than relative to the audit daemon's pid namespace, which currently is
init_pid_ns.

It also allows processes to log audit user messages in their own pid
namespaces, which was not previously permitted. Please see:
https://bugzilla.redhat.com/show_bug.cgi?id=947530
https://bugs.launchpad.net/ubuntu/+source/vsftpd/+bug/1160372
https://bugzilla.novell.com/show_bug.cgi?id=786024

Part of the cleanup here involves deprecating task->pid and task->tgid, which
should be accessed using their respective helper functions.

See: https://lkml.org/lkml/2013/8/20/638

Richard Guy Briggs (5):
pid: get pid_t ppid of task in init_pid_ns
audit: convert PPIDs to the inital PID namespace.
audit: store audit_pid as a struct pid pointer
audit: anchor all pid references in the initial pid namespace
audit: allow user processes to log from another PID namespace

drivers/tty/tty_audit.c | 3 +-
include/linux/sched.h | 24 +++++++++++++++
kernel/audit.c | 54 ++++++++++++++++++++++++----------
kernel/audit.h | 4 +-
kernel/auditfilter.c | 17 ++++++++++-
kernel/auditsc.c | 24 ++++++++-------
security/apparmor/audit.c | 2 +-
security/integrity/integrity_audit.c | 2 +-
security/lsm_audit.c | 11 ++++--
9 files changed, 104 insertions(+), 37 deletions(-)



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