edk2/SOURCES/edk2-MdeModulePkg-Potential-UINT32-overflow-in-S3-ResumeC.patch
2024-08-14 11:16:04 +03:00

67 lines
3.2 KiB
Diff

From 2e4b2b8fce40cf93f35e052102f37fee07b2e64a Mon Sep 17 00:00:00 2001
From: Jon Maloy <jmaloy@redhat.com>
Date: Mon, 10 Jun 2024 18:13:29 -0400
Subject: [PATCH 02/31] MdeModulePkg: Potential UINT32 overflow in S3
ResumeCount
RH-Author: Jon Maloy <jmaloy@redhat.com>
RH-MergeRequest: 77: UINT32 overflow in S3 ResumeCount and Pixiefail fixes
RH-Jira: RHEL-21854 RHEL-21856 RHEL-40099
RH-Acked-by: Gerd Hoffmann <None>
RH-Commit: [2/31] a3592c3437041cbd33a6c11feb3d0999e122c8c0
JIRA: https://issues.redhat.com/browse/RHEL-40099
CVE: CVE-2024-1298
Upstream: Merged
commit 284dbac43da752ee34825c8b3f6f9e8281cb5a19
Author: Shanmugavel Pakkirisamy <shanmugavelx.pakkirisamy@intel.com>
Date: Mon May 6 17:53:09 2024 +0800
MdeModulePkg: Potential UINT32 overflow in S3 ResumeCount
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4677
Attacker able to modify physical memory and ResumeCount.
System will crash/DoS when ResumeCount reaches its MAX_UINT32.
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Pakkirisamy ShanmugavelX <shanmugavelx.pakkirisamy@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
---
.../FirmwarePerformancePei.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
index 6881466201..54b3bc3c54 100644
--- a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
+++ b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
@@ -110,11 +110,15 @@ FpdtStatusCodeListenerPei (
//
S3ResumeTotal = MultU64x32 (AcpiS3ResumeRecord->AverageResume, AcpiS3ResumeRecord->ResumeCount);
AcpiS3ResumeRecord->ResumeCount++;
- AcpiS3ResumeRecord->AverageResume = DivU64x32 (S3ResumeTotal + AcpiS3ResumeRecord->FullResume, AcpiS3ResumeRecord->ResumeCount);
+ if (AcpiS3ResumeRecord->ResumeCount > 0) {
+ AcpiS3ResumeRecord->AverageResume = DivU64x32 (S3ResumeTotal + AcpiS3ResumeRecord->FullResume, AcpiS3ResumeRecord->ResumeCount);
+ DEBUG ((DEBUG_INFO, "\nFPDT: S3 Resume Performance - AverageResume = 0x%x\n", AcpiS3ResumeRecord->AverageResume));
+ } else {
+ DEBUG ((DEBUG_ERROR, "\nFPDT: S3 ResumeCount reaches the MAX_UINT32 value. S3 ResumeCount record reset to Zero."));
+ }
- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - ResumeCount = %d\n", AcpiS3ResumeRecord->ResumeCount));
- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - FullResume = %ld\n", AcpiS3ResumeRecord->FullResume));
- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - AverageResume = %ld\n", AcpiS3ResumeRecord->AverageResume));
+ DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - ResumeCount = 0x%x\n", AcpiS3ResumeRecord->ResumeCount));
+ DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - FullResume = 0x%x\n", AcpiS3ResumeRecord->FullResume));
//
// Update S3 Suspend Performance Record.
--
2.39.3