[edk2-devel] [PATCH 2/2] MdeModulePkg/Core/Dxe: Fix memory leak issue in FwVolBlock.c

[Michael D Kinney]

+Jian

Cc: Jian J Wang <jian.j.wang at intel.com>
Cc: Dandan Bi <dandan.bi at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>

> -----Original Message-----
> From: Mike Maslenkin <mike.maslenkin at gmail.com>
> Sent: Thursday, August 31, 2023 5:11 PM
> To: devel at edk2.groups.io
> Cc: Bi, Dandan <dandan.bi at intel.com>; Gao, Liming
> <gaoliming at byosoft.com.cn>; Kinney, Michael D <michael.d.kinney at intel.com>;
> Desimone, Nathaniel L <nathaniel.l.desimone at intel.com>; Mike Maslenkin
> <mike.maslenkin at gmail.com>
> Subject: [PATCH 2/2] MdeModulePkg/Core/Dxe: Fix memory leak issue in
> FwVolBlock.c
> 
> FvbDev->LbaCache must be freed on error path before deallocating FvbDev.
> 
> Signed-off-by: Mike Maslenkin <mike.maslenkin at gmail.com>
> ---
>  MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
> b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
> index d81334ce24d1..9f5f40e5cd49 100644
> --- a/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
> +++ b/MdeModulePkg/Core/Dxe/FwVolBlock/FwVolBlock.c
> @@ -551,6 +551,7 @@ ProduceFVBProtocolOnBuffer (
>      //
> 
>      FvbDev->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)AllocateCopyPool
> (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);
> 
>      if (FvbDev->DevicePath == NULL) {
> 
> +      FreePool (FvbDev->LbaCache);
> 
>        FreePool (FvbDev);
> 
>        return EFI_OUT_OF_RESOURCES;
> 
>      }
> 
> @@ -563,6 +564,7 @@ ProduceFVBProtocolOnBuffer (
>      //
> 
>      FvbDev->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)AllocateCopyPool
> (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);
> 
>      if (FvbDev->DevicePath == NULL) {
> 
> +      FreePool (FvbDev->LbaCache);
> 
>        FreePool (FvbDev);
> 
>        return EFI_OUT_OF_RESOURCES;
> 
>      }
> 
> --
> 2.32.0 (Apple Git-132)



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