diff --git a/fs/proc/base.c b/fs/proc/base.c
index adfc5b4..ca651ac 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1012,6 +1012,9 @@ static ssize_t auxv_read(struct file *file, char __user *buf,
 {
 	struct mm_struct *mm = file->private_data;
 	unsigned int nwords = 0;
+
+	if (!mm)
+		return 0;
 	do {
 		nwords += 2;
 	} while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */