Skip runtime relocation for PE images that provide invalid relocation infomation
(ex: RelocDir->Size = 0) to fix a hang observed while booting Windows.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Neo Hsueh <hong-chihx.hs...@intel.com>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Dandan Bi <dandan...@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
---
MdePkg/Library/BasePeCoffLib/BasePeCoff.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
index 1bd079ad6a..6d6c37bd61 100644
--- a/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
+++ b/MdePkg/Library/BasePeCoffLib/BasePeCoff.c
@@ -1002,7 +1002,7 @@ PeCoffLoaderRelocateImage (
RelocDir->VirtualAddress + RelocDir->Size - 1,
TeStrippedOffset
);
- if (RelocBase == NULL || RelocBaseEnd == NULL || RelocBaseEnd < RelocBase)
{
+ if (RelocBase == NULL || RelocBaseEnd == NULL || (UINTN) RelocBaseEnd <
(UINTN) RelocBase) {
ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
return RETURN_LOAD_ERROR;
}
@@ -1022,7 +1022,7 @@ PeCoffLoaderRelocateImage (
// Run the relocation information and apply the fixups
//
FixupData = ImageContext->FixupData;
- while (RelocBase < RelocBaseEnd) {
+ while ((UINTN) RelocBase < (UINTN) RelocBaseEnd) {
Reloc = (UINT16 *) ((CHAR8 *) RelocBase + sizeof
(EFI_IMAGE_BASE_RELOCATION));
//
@@ -1051,7 +1051,7 @@ PeCoffLoaderRelocateImage (
//
// Run this relocation record
//
- while (Reloc < RelocEnd) {
+ while ((UINTN) Reloc < (UINTN) RelocEnd) {
Fixup = PeCoffLoaderImageAddress (ImageContext,
RelocBase->VirtualAddress + (*Reloc & 0xFFF), TeStrippedOffset);
if (Fixup == NULL) {
ImageContext->ImageError = IMAGE_ERROR_FAILED_RELOCATION;
@@ -1746,6 +1746,12 @@ PeCoffLoaderRelocateImageForRuntime (
RelocDir->VirtualAddress + RelocDir->Size - 1,
0
);
+ if (RelocBase == NULL || RelocBaseEnd == NULL || (UINTN) RelocBaseEnd <
(UINTN) RelocBase) {
+ //
+ // relocation block is not valid, just return
+ //
+ return;
+ }
} else {
//
// Cannot find relocations, cannot continue to relocate the image, ASSERT
for this invalid image.
@@ -1769,7 +1775,7 @@ PeCoffLoaderRelocateImageForRuntime (
//
FixupData = RelocationData;
RelocBaseOrig = RelocBase;
- while (RelocBase < RelocBaseEnd) {
+ while ((UINTN) RelocBase < (UINTN) RelocBaseEnd) {
//
// Add check for RelocBase->SizeOfBlock field.
//
@@ -1794,7 +1800,7 @@ PeCoffLoaderRelocateImageForRuntime (
//
// Run this relocation record
//
- while (Reloc < RelocEnd) {
+ while ((UINTN) Reloc < (UINTN) RelocEnd) {
Fixup = PeCoffLoaderImageAddress (&ImageContext,
RelocBase->VirtualAddress + (*Reloc & 0xFFF), 0);
if (Fixup == NULL) {
--
2.16.2.windows.1
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