From 4c69abb4d41ece30d9f4cfdf51cf3ee838f48723 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 13 Nov 2024 15:44:07 +0100
Subject: [PATCH] Revert "Bluetooth: hci_core: Fix possible buffer overflow"
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This reverts commit 68644bf5ec6baaff40fc39b3529c874bfda709bd which is
commit 81137162bfaa7278785b24c1fd2e9e74f082e8e4 upstream.

It is reported to cause regressions in the 6.1.y tree, so revert it for
now.

Link: https://lore.kernel.org/all/CADRbXaDqx6S+7tzdDPPEpRu9eDLrHQkqoWTTGfKJSRxY=hT5MQ@mail.gmail.com/
Reported-by: Jeremy Lainé <jeremy.laine@m4x.org>
Cc: Salvatore Bonaccorso <carnil@debian.org>
Cc: Mike <user.service2016@gmail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Pauli Virtanen <pav@iki.fi>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index baa1fb498cf1..789f7f4a0908 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -869,7 +869,7 @@ int hci_get_dev_info(void __user *arg)
 	else
 		flags = hdev->flags;
 
-	strscpy(di.name, hdev->name, sizeof(di.name));
+	strcpy(di.name, hdev->name);
 	di.bdaddr   = hdev->bdaddr;
 	di.type     = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4);
 	di.flags    = flags;