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-rw-r--r--security/apparmor/resource.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/security/apparmor/resource.c b/security/apparmor/resource.c
index 4a368f1fd36d..a4136c10b1c6 100644
--- a/security/apparmor/resource.c
+++ b/security/apparmor/resource.c
@@ -72,6 +72,7 @@ int aa_map_resource(int resource)
72/** 72/**
73 * aa_task_setrlimit - test permission to set an rlimit 73 * aa_task_setrlimit - test permission to set an rlimit
74 * @profile - profile confining the task (NOT NULL) 74 * @profile - profile confining the task (NOT NULL)
75 * @task - task the resource is being set on
75 * @resource - the resource being set 76 * @resource - the resource being set
76 * @new_rlim - the new resource limit (NOT NULL) 77 * @new_rlim - the new resource limit (NOT NULL)
77 * 78 *
@@ -79,18 +80,21 @@ int aa_map_resource(int resource)
79 * 80 *
80 * Returns: 0 or error code if setting resource failed 81 * Returns: 0 or error code if setting resource failed
81 */ 82 */
82int aa_task_setrlimit(struct aa_profile *profile, unsigned int resource, 83int aa_task_setrlimit(struct aa_profile *profile, struct task_struct *task,
83 struct rlimit *new_rlim) 84 unsigned int resource, struct rlimit *new_rlim)
84{ 85{
85 int error = 0; 86 int error = 0;
86 87
87 if (profile->rlimits.mask & (1 << resource) && 88 /* TODO: extend resource control to handle other (non current)
88 new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max) 89 * processes. AppArmor rules currently have the implicit assumption
89 90 * that the task is setting the resource of the current process
90 error = audit_resource(profile, resource, new_rlim->rlim_max, 91 */
91 -EACCES); 92 if ((task != current->group_leader) ||
93 (profile->rlimits.mask & (1 << resource) &&
94 new_rlim->rlim_max > profile->rlimits.limits[resource].rlim_max))
95 error = -EACCES;
92 96
93 return error; 97 return audit_resource(profile, resource, new_rlim->rlim_max, error);
94} 98}
95 99
96/** 100/**