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audit: allow user processes to log from another PID namespace 

Still only permit the audit logging daemon and control to operate from the
initial PID namespace, but allow processes to log from another PID namespace.

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
(informed by ebiederman's c776b5d2)

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
This commit is contained in:
Richard Guy Briggs 2013-08-16 00:04:46 -04:00 committed by Eric Paris
parent f1dc4867ff
commit 5a3cb3b6c3
1 changed files with 7 additions and 3 deletions
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10
kernel/audit.c
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@ -607,9 +607,8 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
{
int err = 0;
/* Only support the initial namespaces for now. */
if ((current_user_ns() != &init_user_ns) ||
(task_active_pid_ns(current) != &init_pid_ns))
/* Only support initial user namespace for now. */
if ((current_user_ns() != &init_user_ns))
return -EPERM;
switch (msg_type) {
@ -629,6 +628,11 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
case AUDIT_TTY_SET:
case AUDIT_TRIM:
case AUDIT_MAKE_EQUIV:
/* Only support auditd and auditctl in initial pid namespace
* for now. */
if ((task_active_pid_ns(current) != &init_pid_ns))
return -EPERM;
if (!capable(CAP_AUDIT_CONTROL))
err = -EPERM;
break;