| Message ID | 20231010053656.2034368-2-twuufnxlz@gmail.com |
|---|---|
| State | Accepted |
| Commit | 18f547f3fc074500ab5d419cf482240324e73a7e |
| Headers | show |
| Series | Bluetooth: hci_sock: fix slab oob read in create_monitor_event | expand |
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 5e4f718073b7..72abe54c45dd 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -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;
When accessing hdev->name, the actual string length should prevail Reported-by: syzbot+c90849c50ed209d77689@syzkaller.appspotmail.com Fixes: dcda165706b9 ("Bluetooth: hci_core: Fix build warnings") Signed-off-by: Edward AD <twuufnxlz@gmail.com> --- net/bluetooth/hci_sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)