sanitize audit_log_capset()

[deliverable/linux.git] / kernel / auditsc.c

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 327e65d50674af3ee9a5db037895cefd562b3d76..c76a58215f5442508b5f433533b8cf3dbd094b6f 100644 (file)
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -235,6 +235,10 @@ struct audit_context {
                        mode_t                  mode;
                        struct mq_attr          attr;
                } mq_open;
+               struct {
+                       pid_t                   pid;
+                       struct audit_cap_data   cap;
+               } capset;
        };
        int fds[2];
 
@@ -1291,6 +1295,12 @@ static void show_special(struct audit_context *context, int *call_panic)
                        attr->mq_flags, attr->mq_maxmsg,
                        attr->mq_msgsize, attr->mq_curmsgs);
                break; }
+       case AUDIT_CAPSET: {
+               audit_log_format(ab, "pid=%d", context->capset.pid);
+               audit_log_cap(ab, "cap_pi", &context->capset.cap.inheritable);
+               audit_log_cap(ab, "cap_pp", &context->capset.cap.permitted);
+               audit_log_cap(ab, "cap_pe", &context->capset.cap.effective);
+               break; }
        }
        audit_log_end(ab);
 }
@@ -1392,14 +1402,6 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
                        audit_log_cap(ab, "new_pe", &axs->new_pcap.effective);
                        break; }
 
-               case AUDIT_CAPSET: {
-                       struct audit_aux_data_capset *axs = (void *)aux;
-                       audit_log_format(ab, "pid=%d", axs->pid);
-                       audit_log_cap(ab, "cap_pi", &axs->cap.inheritable);
-                       audit_log_cap(ab, "cap_pp", &axs->cap.permitted);
-                       audit_log_cap(ab, "cap_pe", &axs->cap.effective);
-                       break; }
-
                }
                audit_log_end(ab);
        }
@@ -2456,29 +2458,15 @@ int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
  * Record the aguments userspace sent to sys_capset for later printing by the
  * audit system if applicable
  */
-int __audit_log_capset(pid_t pid,
+void __audit_log_capset(pid_t pid,
                       const struct cred *new, const struct cred *old)
 {
-       struct audit_aux_data_capset *ax;
        struct audit_context *context = current->audit_context;
-
-       if (likely(!audit_enabled || !context || context->dummy))
-               return 0;
-
-       ax = kmalloc(sizeof(*ax), GFP_KERNEL);
-       if (!ax)
-               return -ENOMEM;
-
-       ax->d.type = AUDIT_CAPSET;
-       ax->d.next = context->aux;
-       context->aux = (void *)ax;
-
-       ax->pid = pid;
-       ax->cap.effective   = new->cap_effective;
-       ax->cap.inheritable = new->cap_effective;
-       ax->cap.permitted   = new->cap_permitted;
-
-       return 0;
+       context->capset.pid = pid;
+       context->capset.cap.effective   = new->cap_effective;
+       context->capset.cap.inheritable = new->cap_effective;
+       context->capset.cap.permitted   = new->cap_permitted;
+       context->type = AUDIT_CAPSET;
 }
 
 /**