Commit 18f547f3 authored by Edward AD's avatar Edward AD Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: hci_sock: fix slab oob read in create_monitor_event 



When accessing hdev->name, the actual string length should prevail

Reported-by: default avatar <syzbot+c90849c50ed209d77689@syzkaller.appspotmail.com>
Fixes: dcda1657 ("Bluetooth: hci_core: Fix build warnings")
Signed-off-by: default avatarEdward AD <twuufnxlz@gmail.com>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 9ee25286

net/bluetooth/hci_sock.c

+1 −1
Original line number Diff line number Diff line
@@ -488,7 +488,7 @@ static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) 
		ni->type = hdev->dev_type;

		ni->bus = hdev->bus;

		bacpy(&ni->bdaddr, &hdev->bdaddr);

		memcpy(ni->name, hdev->name, 8);

		memcpy(ni->name, hdev->name, strlen(hdev->name));



		opcode = cpu_to_le16(HCI_MON_NEW_INDEX);

		break;