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audit: anchor all pid references in the initial pid namespace

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Store and log all PIDs with reference to the initial PID namespace and
use the access functions task_pid_nr() and task_tgid_nr() for task->pid
and task->tgid.

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 2013-12-11 13:52:26 -05:00 • committed by Eric Paris
parent c92cdeb45e
commit f1dc4867ff
6 changed files with 38 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

5
kernel/audit.c
View file

@ -649,6 +649,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
{
int rc = 0;
uid_t uid = from_kuid(&init_user_ns, current_uid());
pid_t pid = task_tgid_nr(current);
if (!audit_enabled && msg_type != AUDIT_USER_AVC) {
*ab = NULL;
@ -658,7 +659,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
*ab = audit_log_start(NULL, GFP_KERNEL, msg_type);
if (unlikely(!*ab))
return rc;
audit_log_format(*ab, "pid=%d uid=%u", task_tgid_vnr(current), uid);
audit_log_format(*ab, "pid=%d uid=%u", pid, uid);
audit_log_session_info(*ab);
audit_log_task_context(*ab);
@ -1823,7 +1824,7 @@ void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)
" euid=%u suid=%u fsuid=%u"
" egid=%u sgid=%u fsgid=%u tty=%s ses=%u",
task_ppid_nr(tsk),
tsk->pid,
task_pid_nr(tsk),
from_kuid(&init_user_ns, audit_get_loginuid(tsk)),
from_kuid(&init_user_ns, cred->uid),
from_kgid(&init_user_ns, cred->gid),