--- zzzz-none-000/linux-4.4.271/drivers/usb/dwc3/debugfs.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/usb/dwc3/debugfs.c	2023-04-19 10:22:29.000000000 +0000
@@ -396,7 +396,7 @@
 	struct dwc3		*dwc = s->private;
 	unsigned long		flags;
 	u32			mode = 0;
-	char			buf[32];
+	char buf[32] = {0};
 
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;
@@ -476,7 +476,7 @@
 	struct dwc3		*dwc = s->private;
 	unsigned long		flags;
 	u32			testmode = 0;
-	char			buf[32];
+	char			buf[32] = {0};
 
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;
@@ -583,7 +583,7 @@
 	struct dwc3		*dwc = s->private;
 	unsigned long		flags;
 	enum dwc3_link_state	state = 0;
-	char			buf[32];
+	char			buf[32] = {0};
 
 	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
 		return -EFAULT;