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-rw-r--r--security/apparmor/resource.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c
index e1f3d7ef2c54..748bf0ca6c9f 100644
--- a/security/apparmor/resource.c
+++ b/security/apparmor/resource.c
@@ -15,6 +15,7 @@
#include <linux/audit.h>
#include "include/audit.h"
+#include "include/context.h"
#include "include/resource.h"
#include "include/policy.h"
@@ -90,17 +91,25 @@ int aa_map_resource(int resource)
int aa_task_setrlimit(struct aa_profile *profile, struct task_struct *task,
unsigned int resource, struct rlimit *new_rlim)
{
+ struct aa_profile *task_profile;
int error = 0;
+ rcu_read_lock();
+ task_profile = aa_get_profile(aa_cred_profile(__task_cred(task)));
+ rcu_read_unlock();
+
/* TODO: extend resource control to handle other (non current)
- * processes. AppArmor rules currently have the implicit assumption
- * that the task is setting the resource of the current process
+ * profiles. AppArmor rules currently have the implicit assumption
+ * that the task is setting the resource of a task confined with
+ * the same profile.
*/
- if ((task != current->group_leader) ||
+ if (profile != task_profile ||
(profile->rlimits.mask & (1 << resource) &&
new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max))
error = -EACCES;
+ aa_put_profile(task_profile);
+
return audit_resource(profile, resource, new_rlim->rlim_max, error);
}