From 8e2d61de4a4fc80ff6f092d8793fdcaee16c4a52 Mon Sep 17 00:00:00 2001
From: pointer-to-bios <pointer-to-bios@outlook.com>
Date: Thu, 2 May 2024 23:14:43 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=B1=8F=E5=B9=95=E6=BB=9A?=
 =?UTF-8?q?=E5=8A=A8=E6=97=B6=E5=BA=95=E4=B8=8B=E6=9C=89=E4=B8=80=E6=9D=A1?=
 =?UTF-8?q?=E6=B2=A1=E6=9C=89=E5=88=B7=E6=96=B0=E7=9A=84bug?=
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---
 src/kernel/tty/tty.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/kernel/tty/tty.c b/src/kernel/tty/tty.c
index 21e1418..c5d13c2 100644
--- a/src/kernel/tty/tty.c
+++ b/src/kernel/tty/tty.c
@@ -77,6 +77,7 @@ inline static void scroll_buffer(
     usize dist)
 {
     memcpy(buffer, buffer + width * pixsize * dist, (height - dist) * width * pixsize);
+    memset(buffer + (height - dist) * width * pixsize, 0, dist * width * pixsize);
 }
 
 inline static void putchar(