[edk2-devel] [edk2-platforms Patch 17/28] Vlvt2TbltDevicePkg: Fix NULL pointer access in SmbiosMiscDxe

2019-07-10 Thread Michael D Kinney
Handle case where no Simple Network Protocols are found.

Cc: Zailiang Sun 
Cc: Yi Qian 
Cc: Gary Lin 
Signed-off-by: Michael D Kinney 
---
 .../MiscBaseBoardManufacturerFunction.c| 14 +-
 .../SmBiosMiscDxe/MiscSystemManufacturerFunction.c | 14 +-
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git 
a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufacturerFunction.c
 
b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufacturerFunction.c
index 4e02486853..8eddc5c2a6 100644
--- 
a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufacturerFunction.c
+++ 
b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufacturerFunction.c
@@ -130,11 +130,15 @@ MISC_SMBIOS_TABLE_FUNCTION(MiscBaseBoardManufacturer)
   //
   //Get the MAC string
   //
-  Status = NetLibGetMacString (
- *Handles,
- NULL,
- &MacStr
- );
+  if (Handles == NULL) {
+Status = EFI_NOT_FOUND;
+  } else {
+Status = NetLibGetMacString (
+   *Handles,
+   NULL,
+   &MacStr
+   );
+  }
   if (EFI_ERROR (Status)) {
 MacStr = L"";
   }
diff --git 
a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufacturerFunction.c
 
b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufacturerFunction.c
index da660cb3a8..b18dbd6ae2 100644
--- 
a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufacturerFunction.c
+++ 
b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufacturerFunction.c
@@ -212,11 +212,15 @@ AddSmbiosManuCallback (
   //
   //Get the MAC string
   //
-  Status = NetLibGetMacString (
- *Handles,
- NULL,
- &MacStr
- );
+  if (Handles == NULL) {
+Status = EFI_NOT_FOUND;
+  } else {
+Status = NetLibGetMacString (
+   *Handles,
+   NULL,
+   &MacStr
+   );
+  }
   if (EFI_ERROR (Status)) {
 MacStr = L"";
   }
-- 
2.21.0.windows.1


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Re: [edk2-devel] [edk2-platforms Patch 17/28] Vlvt2TbltDevicePkg: Fix NULL pointer access in SmbiosMiscDxe

2019-07-10 Thread Sun, Zailiang
Reviewed-By: Zailiang Sun 

> -Original Message-
> From: Kinney, Michael D
> Sent: Thursday, July 11, 2019 3:05 AM
> To: devel@edk2.groups.io
> Cc: Sun, Zailiang ; Qian, Yi ;
> Gary Lin 
> Subject: [edk2-platforms Patch 17/28] Vlvt2TbltDevicePkg: Fix NULL pointer
> access in SmbiosMiscDxe
> 
> Handle case where no Simple Network Protocols are found.
> 
> Cc: Zailiang Sun 
> Cc: Yi Qian 
> Cc: Gary Lin 
> Signed-off-by: Michael D Kinney 
> ---
>  .../MiscBaseBoardManufacturerFunction.c| 14 +-
>  .../SmBiosMiscDxe/MiscSystemManufacturerFunction.c | 14 +
> -
>  2 files changed, 18 insertions(+), 10 deletions(-)
> 
> diff --git
> a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufa
> cturerFunction.c
> b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufa
> cturerFunction.c
> index 4e02486853..8eddc5c2a6 100644
> ---
> a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufa
> cturerFunction.c
> +++
> b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscBaseBoardManufa
> cturerFunction.c
> @@ -130,11 +130,15 @@
> MISC_SMBIOS_TABLE_FUNCTION(MiscBaseBoardManufacturer)
>//
>//Get the MAC string
>//
> -  Status = NetLibGetMacString (
> - *Handles,
> - NULL,
> - &MacStr
> - );
> +  if (Handles == NULL) {
> +Status = EFI_NOT_FOUND;
> +  } else {
> +Status = NetLibGetMacString (
> +   *Handles,
> +   NULL,
> +   &MacStr
> +   );
> +  }
>if (EFI_ERROR (Status)) {
>  MacStr = L"";
>}
> diff --git
> a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufactu
> rerFunction.c
> b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufactu
> rerFunction.c
> index da660cb3a8..b18dbd6ae2 100644
> ---
> a/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufactu
> rerFunction.c
> +++
> b/Platform/Intel/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSystemManufactu
> rerFunction.c
> @@ -212,11 +212,15 @@ AddSmbiosManuCallback (
>//
>//Get the MAC string
>//
> -  Status = NetLibGetMacString (
> - *Handles,
> - NULL,
> - &MacStr
> - );
> +  if (Handles == NULL) {
> +Status = EFI_NOT_FOUND;
> +  } else {
> +Status = NetLibGetMacString (
> +   *Handles,
> +   NULL,
> +   &MacStr
> +   );
> +  }
>if (EFI_ERROR (Status)) {
>  MacStr = L"";
>}
> --
> 2.21.0.windows.1


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