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authorRichard Guy Briggs <rgb@redhat.com>2013-12-11 13:52:26 -0500
committerEric Paris <eparis@redhat.com>2014-03-20 10:11:55 -0400
commitf1dc4867ff41b7bcca57fa19449d1fe7ad517ac1 (patch)
tree873f8e7625dc54ae20a0cc2513fb6a33027f36d7 /kernel/auditsc.c
parentc92cdeb45eea38515e82187f48c2e4f435fb4e25 (diff)
downloadlinux-sh-f1dc4867ff41b7bcca57fa19449d1fe7ad517ac1.tar.gz
audit: anchor all pid references in the initial pid namespace
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>
Diffstat (limited to 'kernel/auditsc.c')
-rw-r--r--kernel/auditsc.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index a6cf7ab56e61..6381f25ac3d4 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -457,10 +457,12 @@ static int audit_filter_rules(struct task_struct *tsk,
struct audit_field *f = &rule->fields[i];
struct audit_names *n;
int result = 0;
+ pid_t pid;
switch (f->type) {
case AUDIT_PID:
- result = audit_comparator(tsk->pid, f->op, f->val);
+ pid = task_pid_nr(tsk);
+ result = audit_comparator(pid, f->op, f->val);
break;
case AUDIT_PPID:
if (ctx) {
@@ -2051,7 +2053,7 @@ static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid,
audit_log_format(ab, "pid=%d uid=%u"
" old-auid=%u new-auid=%u old-ses=%u new-ses=%u"
" res=%d",
- current->pid, uid,
+ task_pid_nr(current), uid,
oldloginuid, loginuid, oldsessionid, sessionid,
!rc);
audit_log_end(ab);
@@ -2275,7 +2277,7 @@ void __audit_ptrace(struct task_struct *t)
{
struct audit_context *context = current->audit_context;
- context->target_pid = t->pid;
+ context->target_pid = task_pid_nr(t);
context->target_auid = audit_get_loginuid(t);
context->target_uid = task_uid(t);
context->target_sessionid = audit_get_sessionid(t);
@@ -2300,7 +2302,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
if (audit_pid && t->tgid == audit_pid) {
if (sig == SIGTERM || sig == SIGHUP || sig == SIGUSR1 || sig == SIGUSR2) {
- audit_sig_pid = tsk->pid;
+ audit_sig_pid = task_pid_nr(tsk);
if (uid_valid(tsk->loginuid))
audit_sig_uid = tsk->loginuid;
else
@@ -2314,7 +2316,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
/* optimize the common case by putting first signal recipient directly
* in audit_context */
if (!ctx->target_pid) {
- ctx->target_pid = t->tgid;
+ ctx->target_pid = task_tgid_nr(t);
ctx->target_auid = audit_get_loginuid(t);
ctx->target_uid = t_uid;
ctx->target_sessionid = audit_get_sessionid(t);
@@ -2335,7 +2337,7 @@ int __audit_signal_info(int sig, struct task_struct *t)
}
BUG_ON(axp->pid_count >= AUDIT_AUX_PIDS);
- axp->target_pid[axp->pid_count] = t->tgid;
+ axp->target_pid[axp->pid_count] = task_tgid_nr(t);
axp->target_auid[axp->pid_count] = audit_get_loginuid(t);
axp->target_uid[axp->pid_count] = t_uid;
axp->target_sessionid[axp->pid_count] = audit_get_sessionid(t);
@@ -2435,7 +2437,7 @@ static void audit_log_task(struct audit_buffer *ab)
from_kgid(&init_user_ns, gid),
sessionid);
audit_log_task_context(ab);
- audit_log_format(ab, " pid=%d comm=", current->pid);
+ audit_log_format(ab, " pid=%d comm=", task_pid_nr(current));
audit_log_untrustedstring(ab, current->comm);
if (mm) {
down_read(&mm->mmap_sem);