From 67950c80c883054c0043a666e0d3f698e22a4d3e Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 26 Jan 2020 09:33:47 +0100
Subject: [PATCH] Kernel: Zero-initialize LocalSocket::m_address

It was possible to read uninitialized kernel memory via getsockname().
Of course, kmalloc() is a good boy and scrubs new allocations with 0xBB
so all you got was a bunch of 0xBB.
---
 Kernel/Net/LocalSocket.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kernel/Net/LocalSocket.h b/Kernel/Net/LocalSocket.h
index 439cf1998f..21b04f6463 100644
--- a/Kernel/Net/LocalSocket.h
+++ b/Kernel/Net/LocalSocket.h
@@ -91,7 +91,7 @@ private:
 
     bool m_bound { false };
     bool m_accept_side_fd_open { false };
-    sockaddr_un m_address;
+    sockaddr_un m_address { 0, { 0 } };
 
     DoubleBuffer m_for_client;
     DoubleBuffer m_for_server;