From: erictian <erictian@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 10 May 2013 05:19:30 +0000 (+0000)
Subject: MdeMdeModulePkg/UsbBusDxe: Break device enumeration process if the device descriptor... 
X-Git-Tag: edk2-stable201903~12559
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=70eca31be15bf93072641b8dccaa9de22af2d5f2

MdeMdeModulePkg/UsbBusDxe: Break device enumeration process if the device descriptor includes 0 configuration.

Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Mike Wu <mike.wu@intel.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14338 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c
index 35cdaf5527..1713e3c421 100644
--- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c
+++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbDesc.c
@@ -786,10 +786,13 @@ UsbBuildDescTable (
     return Status;
   }
 
-  DevDesc          = UsbDev->DevDesc;
-  NumConfig        = DevDesc->Desc.NumConfigurations;
-  DevDesc->Configs = AllocateZeroPool (NumConfig * sizeof (USB_CONFIG_DESC *));
+  DevDesc   = UsbDev->DevDesc;
+  NumConfig = DevDesc->Desc.NumConfigurations;
+  if (NumConfig == 0) {
+    return EFI_DEVICE_ERROR;
+  }
 
+  DevDesc->Configs = AllocateZeroPool (NumConfig * sizeof (USB_CONFIG_DESC *));
   if (DevDesc->Configs == NULL) {
     return EFI_OUT_OF_RESOURCES;
   }