diff options
Diffstat (limited to 'MdePkg/Library/BasePeCoffLib')
| -rw-r--r-- | MdePkg/Library/BasePeCoffLib/BasePeCoff.c | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c index 71089bbb0d..014eb22dc8 100644 --- a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c +++ b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c @@ -83,6 +83,7 @@ PeCoffLoaderGetPeHeader ( RETURN_STATUS Status;
EFI_IMAGE_DOS_HEADER DosHdr;
UINTN Size;
+ UINTN ReadSize;
UINT16 Magic;
UINT32 SectionHeaderOffset;
UINT32 Index;
@@ -94,13 +95,14 @@ PeCoffLoaderGetPeHeader ( // Read the DOS image header to check for its existence
//
Size = sizeof (EFI_IMAGE_DOS_HEADER);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
0,
&Size,
&DosHdr
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
@@ -121,13 +123,14 @@ PeCoffLoaderGetPeHeader ( // location in both images.
//
Size = sizeof (EFI_IMAGE_OPTIONAL_HEADER_UNION);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
ImageContext->PeCoffHeaderOffset,
&Size,
Hdr.Pe32
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
@@ -173,16 +176,17 @@ PeCoffLoaderGetPeHeader ( }
//
- // Read Hdr.Pe32.OptionalHeader.SizeOfHeaders data from file
+ // 2.2 Read last byte of Hdr.Pe32.OptionalHeader.SizeOfHeaders from the file.
//
Size = 1;
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
Hdr.Pe32->OptionalHeader.SizeOfHeaders - 1,
&Size,
&BufferData
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
@@ -202,9 +206,10 @@ PeCoffLoaderGetPeHeader ( }
//
- // Read section header from file
+ // Read last byte of section header from file
//
Size = 1;
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress +
@@ -212,7 +217,7 @@ PeCoffLoaderGetPeHeader ( &Size,
&BufferData
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
}
@@ -246,16 +251,17 @@ PeCoffLoaderGetPeHeader ( }
//
- // Read Hdr.Pe32.OptionalHeader.SizeOfHeaders data from file
+ // 2.2 Read last byte of Hdr.Pe32Plus.OptionalHeader.SizeOfHeaders from the file.
//
Size = 1;
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders - 1,
&Size,
&BufferData
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
@@ -275,9 +281,10 @@ PeCoffLoaderGetPeHeader ( }
//
- // Read section header from file
+ // Read last byte of section header from file
//
Size = 1;
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress +
@@ -285,7 +292,7 @@ PeCoffLoaderGetPeHeader ( &Size,
&BufferData
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
}
@@ -333,13 +340,14 @@ PeCoffLoaderGetPeHeader ( // Read section header from file
//
Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
SectionHeaderOffset,
&Size,
&SectionHeader
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
@@ -356,13 +364,14 @@ PeCoffLoaderGetPeHeader ( // Read the last byte to make sure the data is in the image region.
//
Size = 1;
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
SectionHeader.PointerToRawData + SectionHeader.SizeOfRawData - 1,
&Size,
&BufferData
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
return Status;
}
}
@@ -416,6 +425,7 @@ PeCoffLoaderGetImageInfo ( EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
EFI_IMAGE_DATA_DIRECTORY *DebugDirectoryEntry;
UINTN Size;
+ UINTN ReadSize;
UINTN Index;
UINTN DebugDirectoryEntryRva;
UINTN DebugDirectoryEntryFileOffset;
@@ -538,13 +548,14 @@ PeCoffLoaderGetImageInfo ( // Read section header from file
//
Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
SectionHeaderOffset,
&Size,
&SectionHeader
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
@@ -565,13 +576,14 @@ PeCoffLoaderGetImageInfo ( // Read next debug directory entry
//
Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
DebugDirectoryEntryFileOffset + Index,
&Size,
&DebugEntry
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
@@ -599,13 +611,14 @@ PeCoffLoaderGetImageInfo ( // Read section header from file
//
Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
SectionHeaderOffset,
&Size,
&SectionHeader
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
@@ -652,13 +665,14 @@ PeCoffLoaderGetImageInfo ( // Read next debug directory entry
//
Size = sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY);
+ ReadSize = Size;
Status = ImageContext->ImageRead (
ImageContext->Handle,
DebugDirectoryEntryFileOffset + Index,
&Size,
&DebugEntry
);
- if (RETURN_ERROR (Status)) {
+ if (RETURN_ERROR (Status) || (Size != ReadSize)) {
ImageContext->ImageError = IMAGE_ERROR_IMAGE_READ;
return Status;
}
|