diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1953009..331c4f6 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -280,9 +280,9 @@ out:
 
 static int proc_pid_auxv(struct task_struct *task, char *buffer)
 {
-	int res = 0;
-	struct mm_struct *mm = get_task_mm(task);
-	if (mm) {
+	struct mm_struct *mm = mm_for_maps(task);
+	int res = PTR_ERR(mm);
+	if (mm && !IS_ERR(mm)) {
 		unsigned int nwords = 0;
 		do {
 			nwords += 2;