diff options
| author | Nhi Pham <nhi@os.amperecomputing.com> | 2023-11-23 11:48:54 +0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-11-28 19:10:19 +0000 |
| commit | 466f2f0c5fc0f30e8e7157172ab7fb74e85640c6 (patch) | |
| tree | 292435cfaf6f2aa3500bfcdce1900cbf25eea204 /MdeModulePkg | |
| parent | 38ba4a64c513d84fa65a0c4f8403aefe90818720 (diff) | |
| download | edk2-466f2f0c5fc0f30e8e7157172ab7fb74e85640c6.tar.gz | |
MdeModulePkg/DxeCapsuleLibFmp: Fix crash with VirtualAddressMap omitted
If the SetVirtualAddressMap() is not called, mIsVirtualAddrConverted
is FALSE and the kernel crash occurs in IsNestedFmpCapsule() when
executing gBS->LocateProtocol () in the else case.
To serve the omitted SetVirtualAddressMap() call, we could just check
mEsrtTable presence instead of relying on mIsVirtualAddrConverted.
Signed-off-by: Nhi Pham <nhi@os.amperecomputing.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c | 17 | ||||
| -rw-r--r-- | MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c | 2 |
2 files changed, 7 insertions, 12 deletions
diff --git a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c index 197af267af..2433c76a8c 100644 --- a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c +++ b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleLib.c @@ -41,8 +41,7 @@ #include <Protocol/FirmwareManagementProgress.h>
#include <Protocol/DevicePath.h>
-EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable = NULL;
-BOOLEAN mIsVirtualAddrConverted = FALSE;
+EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable = NULL;
BOOLEAN mDxeCapsuleLibEndOfDxe = FALSE;
EFI_EVENT mDxeCapsuleLibEndOfDxeEvent = NULL;
@@ -1394,14 +1393,12 @@ IsNestedFmpCapsule ( EFI_SYSTEM_RESOURCE_ENTRY Entry;
EsrtGuidFound = FALSE;
- if (mIsVirtualAddrConverted) {
- if (mEsrtTable != NULL) {
- EsrtEntry = (EFI_SYSTEM_RESOURCE_ENTRY *)(mEsrtTable + 1);
- for (Index = 0; Index < mEsrtTable->FwResourceCount; Index++, EsrtEntry++) {
- if (CompareGuid (&EsrtEntry->FwClass, &CapsuleHeader->CapsuleGuid)) {
- EsrtGuidFound = TRUE;
- break;
- }
+ if (mEsrtTable != NULL) {
+ EsrtEntry = (EFI_SYSTEM_RESOURCE_ENTRY *)(mEsrtTable + 1);
+ for (Index = 0; Index < mEsrtTable->FwResourceCount; Index++, EsrtEntry++) {
+ if (CompareGuid (&EsrtEntry->FwClass, &CapsuleHeader->CapsuleGuid)) {
+ EsrtGuidFound = TRUE;
+ break;
}
}
} else {
diff --git a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c index 9ceb44fe4d..44f30c16c2 100644 --- a/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c +++ b/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c @@ -21,7 +21,6 @@ #include <Library/MemoryAllocationLib.h>
extern EFI_SYSTEM_RESOURCE_TABLE *mEsrtTable;
-extern BOOLEAN mIsVirtualAddrConverted;
EFI_EVENT mDxeRuntimeCapsuleLibVirtualAddressChangeEvent = NULL;
EFI_EVENT mDxeRuntimeCapsuleLibReadyToBootEvent = NULL;
@@ -40,7 +39,6 @@ DxeCapsuleLibVirtualAddressChangeEvent ( )
{
gRT->ConvertPointer (EFI_OPTIONAL_PTR, (VOID **)&mEsrtTable);
- mIsVirtualAddrConverted = TRUE;
}
/**
|