diff options
| -rw-r--r-- | MdePkg/Library/UefiDevicePathLib/DevicePathToText.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c b/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c index 97d279eeb2..678f3d0a92 100644 --- a/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c +++ b/MdePkg/Library/UefiDevicePathLib/DevicePathToText.c @@ -972,7 +972,7 @@ DevPathToTextUsbWWID ( SerialNumberStr = (CHAR16 *) ((UINT8 *) UsbWWId + sizeof (USB_WWID_DEVICE_PATH));
Length = (UINT16) ((DevicePathNodeLength ((EFI_DEVICE_PATH_PROTOCOL *) UsbWWId) - sizeof (USB_WWID_DEVICE_PATH)) / sizeof (CHAR16));
- if (SerialNumberStr [Length - 1] != 0) {
+ if (Length >= 1 && SerialNumberStr [Length - 1] != 0) {
//
// In case no NULL terminator in SerialNumber, create a new one with NULL terminator
//
|