sched: enforce ref-counting on current task/thread pointers

2026-04-01 18:17:05 +01:00
parent 15c2207ab9
commit 512356ac2d
28 changed files with 364 additions and 103 deletions
@@ -3,9 +3,13 @@

 kern_status_t sys_kern_handle_close(kern_handle_t handle)
 {
-	struct task *self = current_task();
+	struct task *self = get_current_task();

-	return task_close_handle(self, handle);
+	kern_status_t status = task_close_handle(self, handle);
+
+	put_current_task(self);
+
+	return status;
 }

 kern_status_t sys_kern_handle_transfer(
@@ -24,10 +28,11 @@ kern_status_t sys_kern_handle_transfer(
 		return KERN_INVALID_ARGUMENT;
 	}

-	struct task *self = current_task();
+	struct task *self = get_current_task();

 	if (out_handle
 	    && !validate_access_w(self, out_handle, sizeof *out_handle)) {
+		put_current_task(self);
 		return KERN_MEMORY_FAULT;
 	}

@@ -120,6 +125,8 @@ kern_status_t sys_kern_handle_transfer(
 		*out_handle = dest_handle;
 	}

+	put_current_task(self);
+
 	return KERN_OK;

 cleanup:
@@ -135,5 +142,7 @@ cleanup:
 		object_unref(src_object);
 	}

+	put_current_task(self);
+
 	return status;
 }