sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg/DxeCapsuleLibFmp: Fix crash with VirtualAddressMap omitted

Browse Source 
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>
This commit is contained in:
Nhi Pham
2023-11-23 11:48:54 +07:00
committed by mergify[bot]
parent 38ba4a64c5
commit 466f2f0c5f
2 changed files with 7 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleRuntime.c
View File

@@ -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;
}
/**