linux-kernel - [PATCH v1 1/1] Bluetooth: MGMT: Use correct address for memcpy()

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Message-Id: <20230717093214.82102-1-andriy.shevchenko@linux.intel.com>
Date:   Mon, 17 Jul 2023 12:32:14 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] Bluetooth: MGMT: Use correct address for memcpy()

In function ‘fortify_memcpy_chk’,
    inlined from ‘get_conn_info_complete’ at net/bluetooth/mgmt.c:7281:2:
include/linux/fortify-string.h:592:25: error: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning]
  592 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

This is due to the wrong member is used for memcpy(). Use correct one.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 net/bluetooth/mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 33c06f7c7641..d6c9b7bc8592 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -7278,7 +7278,7 @@ static void get_conn_info_complete(struct hci_dev *hdev, void *data, int err)
 
 	bt_dev_dbg(hdev, "err %d", err);
 
-	memcpy(&rp.addr, &cp->addr.bdaddr, sizeof(rp.addr));
+	memcpy(&rp.addr, &cp->addr, sizeof(rp.addr));
 
 	status = mgmt_status(err);
 	if (status == MGMT_STATUS_SUCCESS) {
-- 
2.40.0.1.gaa8946217a0b