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authorvanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>2009-03-04 04:31:46 +0000
committervanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>2009-03-04 04:31:46 +0000
commit0dc99784366897508ea0309df6e2a75f85662fcc (patch)
tree8b8220dc6325829c733c69c28d0d8aa264439e0d /MdeModulePkg/Bus
parentea43036162630d567798bf763c80f1a1acc1d132 (diff)
downloadedk2-platforms-0dc99784366897508ea0309df6e2a75f85662fcc.tar.xz
add check for invalid handle.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7795 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus')
-rw-r--r--MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
index c78305e780..e2c86b07b4 100644
--- a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
+++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
@@ -1102,6 +1102,10 @@ USBKeyboardUnregisterKeyNotify (
if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
+
+ if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {
+ return EFI_INVALID_PARAMETER;
+ }
UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);