From: "Dimitrije Pavlov" <Dimitrije.Pavlov@arm.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
Jiewen Yao <jiewen.yao@intel.com>,
Sunny Wang <Sunny.Wang@arm.com>,
Jeff Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>,
Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Subject: [PATCH v1 1/1] OvmfPkg/VirtioGpuDxe: Check QueryMode arguments for validity
Date: Mon, 15 Aug 2022 10:01:44 -0500 [thread overview]
Message-ID: <20220815150144.2874107-1-dimitrije.pavlov@arm.com> (raw)
The current implementation does not check if Info or SizeInfo
pointers are NULL. This causes the SCT test suite to crash.
Add a check to return EFI_INVALID_PARAMETER if any of these
pointers are NULL.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Sunny Wang <Sunny.Wang@arm.com>
Cc: Jeff Booher-Kaeding <Jeff.Booher-Kaeding@arm.com>
Cc: Samer El-Haj-Mahmoud <Samer.El-Haj-Mahmoud@arm.com>
Signed-off-by: Dimitrije Pavlov <Dimitrije.Pavlov@arm.com>
---
OvmfPkg/VirtioGpuDxe/Gop.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/OvmfPkg/VirtioGpuDxe/Gop.c b/OvmfPkg/VirtioGpuDxe/Gop.c
index 401db47672ec..bb68b1cdc2bc 100644
--- a/OvmfPkg/VirtioGpuDxe/Gop.c
+++ b/OvmfPkg/VirtioGpuDxe/Gop.c
@@ -308,7 +308,9 @@ GopQueryMode (
{
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *GopModeInfo;
- if (ModeNumber >= This->Mode->MaxMode) {
+ if (Info == NULL ||
+ SizeOfInfo == NULL ||
+ ModeNumber >= This->Mode->MaxMode) {
return EFI_INVALID_PARAMETER;
}
--
2.37.1
reply other threads:[~2022-08-15 15:01 UTC|newest]
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