!90 fix CVE-2019-11098
From: @huiyingc Reviewed-by: @caojinhuahw Signed-off-by: @caojinhuahw
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191
0021-UefiCpuPkg-Move-MigrateGdt-from-DiscoverMemory-to-Te.patch
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191
0021-UefiCpuPkg-Move-MigrateGdt-from-DiscoverMemory-to-Te.patch
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@ -0,0 +1,191 @@
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From f6ec1dd34fb6b9757b5ead465ee2ea20c182b0ac Mon Sep 17 00:00:00 2001
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From: Guomin Jiang <guomin.jiang@intel.com>
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Date: Wed, 13 Jan 2021 18:08:09 +0800
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Subject: [PATCH] UefiCpuPkg: Move MigrateGdt from DiscoverMemory to
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TempRamDone. (CVE-2019-11098)
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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1614
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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3160
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The GDT still in flash with commit 60b12e69fb1c8c7180fdda92f008248b9ec83db1
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after TempRamDone
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So move the action to TempRamDone event to avoid reading GDT from flash.
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Signed-off-by: Guomin Jiang <guomin.jiang@intel.com>
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Cc: Eric Dong <eric.dong@intel.com>
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Cc: Ray Ni <ray.ni@intel.com>
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Cc: Laszlo Ersek <lersek@redhat.com>
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Cc: Rahul Kumar <rahul1.kumar@intel.com>
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Cc: Debkumar De <debkumar.de@intel.com>
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Cc: Harry Han <harry.han@intel.com>
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Cc: Catharine West <catharine.west@intel.com>
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Reviewed-by: Ray Ni <ray.ni@intel.com>
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---
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UefiCpuPkg/CpuMpPei/CpuMpPei.c | 37 --------------------------
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UefiCpuPkg/CpuMpPei/CpuMpPei.inf | 1 -
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UefiCpuPkg/CpuMpPei/CpuPaging.c | 8 ------
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UefiCpuPkg/SecCore/SecCore.inf | 1 +
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UefiCpuPkg/SecCore/SecMain.c | 45 ++++++++++++++++++++++++++++++++
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5 files changed, 46 insertions(+), 46 deletions(-)
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diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
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index 40729a09b9..3c1bad6470 100644
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--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c
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+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
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@@ -429,43 +429,6 @@ GetGdtr (
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AsmReadGdtr ((IA32_DESCRIPTOR *)Buffer);
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}
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-/**
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- Migrates the Global Descriptor Table (GDT) to permanent memory.
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-
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- @retval EFI_SUCCESS The GDT was migrated successfully.
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- @retval EFI_OUT_OF_RESOURCES The GDT could not be migrated due to lack of available memory.
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-
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-**/
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-EFI_STATUS
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-MigrateGdt (
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- VOID
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- )
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-{
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- EFI_STATUS Status;
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- UINTN GdtBufferSize;
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- IA32_DESCRIPTOR Gdtr;
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- VOID *GdtBuffer;
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-
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- AsmReadGdtr ((IA32_DESCRIPTOR *) &Gdtr);
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- GdtBufferSize = sizeof (IA32_SEGMENT_DESCRIPTOR) -1 + Gdtr.Limit + 1;
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-
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- Status = PeiServicesAllocatePool (
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- GdtBufferSize,
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- &GdtBuffer
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- );
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- ASSERT (GdtBuffer != NULL);
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- if (EFI_ERROR (Status)) {
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- return EFI_OUT_OF_RESOURCES;
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- }
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-
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- GdtBuffer = ALIGN_POINTER (GdtBuffer, sizeof (IA32_SEGMENT_DESCRIPTOR));
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- CopyMem (GdtBuffer, (VOID *) Gdtr.Base, Gdtr.Limit + 1);
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- Gdtr.Base = (UINTN) GdtBuffer;
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- AsmWriteGdtr (&Gdtr);
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-
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- return EFI_SUCCESS;
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-}
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-
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/**
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Initializes CPU exceptions handlers for the sake of stack switch requirement.
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diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf
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index ba829d816e..7444bdb968 100644
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--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf
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+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf
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@@ -67,7 +67,6 @@
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gUefiCpuPkgTokenSpaceGuid.PcdCpuStackSwitchExceptionList ## SOMETIMES_CONSUMES
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gUefiCpuPkgTokenSpaceGuid.PcdCpuKnownGoodStackSize ## SOMETIMES_CONSUMES
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gUefiCpuPkgTokenSpaceGuid.PcdCpuApStackSize ## SOMETIMES_CONSUMES
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- gEfiMdeModulePkgTokenSpaceGuid.PcdMigrateTemporaryRamFirmwareVolumes ## CONSUMES
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[Depex]
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TRUE
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diff --git a/UefiCpuPkg/CpuMpPei/CpuPaging.c b/UefiCpuPkg/CpuMpPei/CpuPaging.c
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index 50ad4277af..3e261d6657 100644
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--- a/UefiCpuPkg/CpuMpPei/CpuPaging.c
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+++ b/UefiCpuPkg/CpuMpPei/CpuPaging.c
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@@ -605,17 +605,9 @@ MemoryDiscoveredPpiNotifyCallback (
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{
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EFI_STATUS Status;
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BOOLEAN InitStackGuard;
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- BOOLEAN InterruptState;
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EDKII_MIGRATED_FV_INFO *MigratedFvInfo;
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EFI_PEI_HOB_POINTERS Hob;
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- if (PcdGetBool (PcdMigrateTemporaryRamFirmwareVolumes)) {
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- InterruptState = SaveAndDisableInterrupts ();
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- Status = MigrateGdt ();
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- ASSERT_EFI_ERROR (Status);
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- SetInterruptState (InterruptState);
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- }
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-
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//
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// Paging must be setup first. Otherwise the exception TSS setup during MP
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// initialization later will not contain paging information and then fail
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diff --git a/UefiCpuPkg/SecCore/SecCore.inf b/UefiCpuPkg/SecCore/SecCore.inf
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index 545781d6b4..ded83beb52 100644
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--- a/UefiCpuPkg/SecCore/SecCore.inf
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+++ b/UefiCpuPkg/SecCore/SecCore.inf
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@@ -77,6 +77,7 @@
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[Pcd]
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gUefiCpuPkgTokenSpaceGuid.PcdPeiTemporaryRamStackSize ## CONSUMES
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+ gEfiMdeModulePkgTokenSpaceGuid.PcdMigrateTemporaryRamFirmwareVolumes ## CONSUMES
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[UserExtensions.TianoCore."ExtraFiles"]
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SecCoreExtra.uni
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diff --git a/UefiCpuPkg/SecCore/SecMain.c b/UefiCpuPkg/SecCore/SecMain.c
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index 155be49a60..2416c4ce56 100644
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--- a/UefiCpuPkg/SecCore/SecMain.c
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+++ b/UefiCpuPkg/SecCore/SecMain.c
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@@ -35,6 +35,43 @@ EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformationPpi[] = {
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}
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};
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+/**
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+ Migrates the Global Descriptor Table (GDT) to permanent memory.
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+
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+ @retval EFI_SUCCESS The GDT was migrated successfully.
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+ @retval EFI_OUT_OF_RESOURCES The GDT could not be migrated due to lack of available memory.
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+
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+**/
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+EFI_STATUS
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+MigrateGdt (
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+ VOID
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+ )
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+{
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+ EFI_STATUS Status;
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+ UINTN GdtBufferSize;
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+ IA32_DESCRIPTOR Gdtr;
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+ VOID *GdtBuffer;
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+
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+ AsmReadGdtr ((IA32_DESCRIPTOR *) &Gdtr);
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+ GdtBufferSize = sizeof (IA32_SEGMENT_DESCRIPTOR) -1 + Gdtr.Limit + 1;
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+
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+ Status = PeiServicesAllocatePool (
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+ GdtBufferSize,
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+ &GdtBuffer
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+ );
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+ ASSERT (GdtBuffer != NULL);
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+ if (EFI_ERROR (Status)) {
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+ return EFI_OUT_OF_RESOURCES;
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+ }
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+
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+ GdtBuffer = ALIGN_POINTER (GdtBuffer, sizeof (IA32_SEGMENT_DESCRIPTOR));
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+ CopyMem (GdtBuffer, (VOID *) Gdtr.Base, Gdtr.Limit + 1);
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+ Gdtr.Base = (UINTN) GdtBuffer;
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+ AsmWriteGdtr (&Gdtr);
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+
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+ return EFI_SUCCESS;
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+}
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+
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//
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// These are IDT entries pointing to 10:FFFFFFE4h.
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//
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@@ -409,6 +446,14 @@ SecTemporaryRamDone (
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//
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State = SaveAndDisableInterrupts ();
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+ //
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+ // Migrate GDT before NEM near down
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+ //
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+ if (PcdGetBool (PcdMigrateTemporaryRamFirmwareVolumes)) {
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+ Status = MigrateGdt ();
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+ ASSERT_EFI_ERROR (Status);
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+ }
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+
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//
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// Disable Temporary RAM after Stack and Heap have been migrated at this point.
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//
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--
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2.27.0
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@ -5,7 +5,7 @@
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Name: edk2
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Version: %{stable_date}
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Release: 5
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Release: 6
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Summary: EFI Development Kit II
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License: BSD-2-Clause-Patent
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URL: https://github.com/tianocore/edk2
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@ -40,6 +40,8 @@ Patch0019: 0019-SecurityPkg-Add-references-to-header-and-inf-files-t.patch
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Patch0020: 0020-OvmfPkg-VirtioNetDxe-Extend-the-RxBufferSize-to-avoi.patch
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Patch0021: 0021-UefiCpuPkg-Move-MigrateGdt-from-DiscoverMemory-to-Te.patch
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BuildRequires: acpica-tools gcc gcc-c++ libuuid-devel python3 bc nasm python3-unversioned-command
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%description
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@ -240,6 +242,9 @@ chmod +x %{buildroot}%{_bindir}/Rsa2048Sha256GenerateKeys
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%endif
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%changelog
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* Thu Sep 29 2022 chenhuiying<chenhuiying4@huawei.com> - 202011-6
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* fix CVE-2019-11098
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* Tue Jun 14 2022 miaoyubo <miaoyubo@huawei.com> - 202011-5
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- Enable TPM for pcr0-7
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