Add conformance check for OldBuffer and size even if the memory allocation fails.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8294 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 11 insertions, 7 deletions

diff --git a/MdePkg/Library/UefiMemoryAllocationLib/MemoryAllocationLib.c b/MdePkg/Library/UefiMemoryAllocationLib/MemoryAllocationLib.c
index 08bb2921ab..668372223c 100644
--- a/MdePkg/Library/UefiMemoryAllocationLib/MemoryAllocationLib.c
+++ b/MdePkg/Library/UefiMemoryAllocationLib/MemoryAllocationLib.c
@@ -128,7 +128,7 @@ AllocateReservedPages (
   Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer.  Buffer

   must have been allocated on a previous call to the page allocation services of the Memory

   Allocation Library.  If it is not possible to free allocated pages, then this function will

-  peform no actions.

+  perform no actions.

   

   If Buffer was not allocated with a page allocation function in the Memory Allocation Library,

   then ASSERT().

@@ -325,7 +325,7 @@ AllocateAlignedReservedPages (
   Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer.  Buffer

   must have been allocated on a previous call to the aligned page allocation services of the Memory

   Allocation Library.  If it is not possible to free allocated pages, then this function will 

-  peform no actions.

+  perform no actions.

   

   If Buffer was not allocated with an aligned page allocation function in the Memory Allocation

   Library, then ASSERT().

@@ -442,9 +442,9 @@ AllocateReservedPool (
 }

 

 /**

-  Allocates and zeros a buffer of a certian pool type.

+  Allocates and zeros a buffer of a certain pool type.

 

-  Allocates the number bytes specified by AllocationSize of a certian pool type, clears the buffer

+  Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer

   with zeros, and returns a pointer to the allocated buffer.  If AllocationSize is 0, then a valid

   buffer of 0 size is returned.  If there is not enough memory remaining to satisfy the request,

   then NULL is returned.

@@ -537,9 +537,9 @@ AllocateReservedZeroPool (
 }

 

 /**

-  Copies a buffer to an allocated buffer of a certian pool type.

+  Copies a buffer to an allocated buffer of a certain pool type.

 

-  Allocates the number bytes specified by AllocationSize of a certian pool type, copies

+  Allocates the number bytes specified by AllocationSize of a certain pool type, copies

   AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the

   allocated buffer.  If AllocationSize is 0, then a valid buffer of 0 size is returned.  If there

   is not enough memory remaining to satisfy the request, then NULL is returned.

@@ -685,6 +685,10 @@ InternalReallocatePool (
 {

   VOID  *NewBuffer;

 

+  //

+  // Check the boundary for OldBuffer even if the allocation failure.

+  //

+  ASSERT (OldBuffer == NULL || MIN (OldSize, NewSize) <= MAX_ADDRESS - (UINTN) OldBuffer + 1);

   NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);

   if (NewBuffer != NULL && OldBuffer != NULL) {

     CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));

@@ -795,7 +799,7 @@ ReallocateReservedPool (
 

   Frees the buffer specified by Buffer.  Buffer must have been allocated on a previous call to the

   pool allocation services of the Memory Allocation Library.  If it is not possible to free pool

-  resources, then this function will peform no actions.

+  resources, then this function will perform no actions.

   

   If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,

   then ASSERT().