[PATCH 5.10 124/215] Bluetooth: mgmt: Fix the command returns garbage parameter value

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Tedd Ho-Jeong An <tedd.an@xxxxxxxxx>

[ Upstream commit 02ce2c2c24024aade65a8d91d6a596651eaf2d0a ]

When the Get Device Flags command fails, it returns the error status
with the parameters filled with the garbage values. Although the
parameters are not used, it is better to fill with zero than the random
values.

Signed-off-by: Tedd Ho-Jeong An <tedd.an@xxxxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/bluetooth/mgmt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7dfb96946220..31a585fe0c7c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4038,6 +4038,8 @@ static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_dev_lock(hdev);
 
+	memset(&rp, 0, sizeof(rp));
+
 	if (cp->addr.type == BDADDR_BREDR) {
 		br_params = hci_bdaddr_list_lookup_with_flags(&hdev->whitelist,
 							      &cp->addr.bdaddr,
-- 
2.30.2






[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux