--- zzzz-none-000/linux-4.4.271/drivers/video/fbdev/core/fbmem.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/video/fbdev/core/fbmem.c	2023-04-19 10:22:30.000000000 +0000
@@ -1104,6 +1104,13 @@
 	void __user *argp = (void __user *)arg;
 	long ret = 0;
 
+	memset(&var, 0, sizeof(var));
+	memset(&fix, 0, sizeof(fix));
+	memset(&con2fb, 0, sizeof(con2fb));
+	memset(&cmap_from, 0, sizeof(cmap_from));
+	memset(&cmap, 0, sizeof(cmap));
+	memset(&event, 0, sizeof(event));
+
 	switch (cmd) {
 	case FBIOGET_VSCREENINFO:
 		if (!lock_fb_info(info))