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add security check.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8680 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2009-06-29 09:19:25 +00:00
parent f2a064736d
commit 894d038a8d
22 changed files with 90 additions and 40 deletions
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18
MdeModulePkg/Universal/Network/ArpDxe/ArpImpl.c
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@@ -1,7 +1,7 @@
/** @file
The implementation of the ARP protocol.
Copyright (c) 2006 - 2008, Intel Corporation.<BR>
Copyright (c) 2006 - 2009, Intel Corporation.<BR>
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at<BR>
@@ -1083,6 +1083,7 @@ ArpSendFrame (
Packet = AllocatePool (TotalLength);
if (Packet == NULL) {
DEBUG ((EFI_D_ERROR, "ArpSendFrame: Allocate memory for Packet failed.\n"));
ASSERT (Packet != NULL);
}
TmpPtr = Packet;
@@ -1451,6 +1452,7 @@ ArpFindCacheEntry (
UINT32 FoundCount;
EFI_ARP_FIND_DATA *FindData;
LIST_ENTRY *CacheTable;
UINT32 FoundEntryLength;
ArpService = Instance->ArpService;
@@ -1567,12 +1569,14 @@ ArpFindCacheEntry (
goto CLEAN_EXIT;
}
//
// Found the entry length, make sure its 8 bytes alignment.
//
FoundEntryLength = (((sizeof (EFI_ARP_FIND_DATA) + Instance->ConfigData.SwAddressLength +
ArpService->SnpMode.HwAddressSize) + 3) & ~(0x3));
if (EntryLength != NULL) {
//
// Return the entry length, make sure its 8 bytes alignment.
//
*EntryLength = (((sizeof (EFI_ARP_FIND_DATA) + Instance->ConfigData.SwAddressLength +
ArpService->SnpMode.HwAddressSize) + 3) & ~(0x3));
*EntryLength = FoundEntryLength;
}
if (EntryCount != NULL) {
@@ -1589,7 +1593,7 @@ ArpFindCacheEntry (
//
// Allocate buffer to copy the found entries.
//
FindData = AllocatePool (FoundCount * (*EntryLength));
FindData = AllocatePool (FoundCount * FoundEntryLength);
if (FindData == NULL) {
DEBUG ((EFI_D_ERROR, "ArpFindCacheEntry: Failed to allocate memory.\n"));
Status = EFI_OUT_OF_RESOURCES;