diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index e6a1c805064f..083474ba8fba 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -1087,6 +1087,11 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 	void __user *argp = (void __user *)arg;
 	long ret = 0;
 
+	memset(&var, 0, sizeof(var));
+	memset(&fix, 0, sizeof(fix));
+	memset(&cmap_from, 0, sizeof(cmap_from));
+	memset(&cmap, 0, sizeof(cmap));
+
 	switch (cmd) {
 	case FBIOGET_VSCREENINFO:
 		lock_fb_info(info);