From 3b7038d8840bae1509cd2baeb578737f9c0f0fea Mon Sep 17 00:00:00 2001
From: Sylvain Kerjean <sylvain_kerjean@hotmail.com>
Date: Tue, 2 Dec 2025 21:23:05 +0100
Subject: [PATCH] [Network] Clear buffer before use.

Clean unix address buffer before use : more robust to bad user addresses missing trailing '\0',
 and prevents leaking data

Change-Id: I769b895327f97870886309a7054facd3c169fb7f
Reviewed-on: https://review.haiku-os.org/c/haiku/+/10052
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
---
 src/system/kernel/fs/socket.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/system/kernel/fs/socket.cpp b/src/system/kernel/fs/socket.cpp
index 5c2ec81d3f..78f84c7972 100644
--- a/src/system/kernel/fs/socket.cpp
+++ b/src/system/kernel/fs/socket.cpp
@@ -1099,6 +1099,7 @@ _user_sendto(int socket, const void *data, size_t length, int flags,
 
 	// copy address from userland
 	char address[MAX_SOCKET_ADDRESS_LENGTH];
+	memset(address, 0, MAX_SOCKET_ADDRESS_LENGTH);
 	if (userAddress != NULL) {
 		if (!IS_USER_ADDRESS(userAddress)
 			|| user_memcpy(address, userAddress, addressLength) != B_OK) {