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From: "Fu, Siyuan" <siyuan.fu@intel.com>
To: "Wu, Jiaxin" <jiaxin.wu@intel.com>,
	"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "Wang, Fan" <fan.wang@intel.com>, "Ye, Ting" <ting.ye@intel.com>
Subject: Re: [Patch 1/3] NetworkPkg/TcpDxe: Check FragmentBuffer for NULL before use
Date: Fri, 22 Dec 2017 07:18:22 +0000	[thread overview]
Message-ID: <B1FF2E9001CE9041BD10B825821D5BC58B3FA484@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1513926438-4160-2-git-send-email-jiaxin.wu@intel.com>

Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

> -----Original Message-----
> From: Wu, Jiaxin
> Sent: Friday, December 22, 2017 3:07 PM
> To: edk2-devel@lists.01.org
> Cc: Fu, Siyuan <siyuan.fu@intel.com>; Wang, Fan <fan.wang@intel.com>; Ye,
> Ting <ting.ye@intel.com>; Wu, Jiaxin <jiaxin.wu@intel.com>
> Subject: [Patch 1/3] NetworkPkg/TcpDxe: Check FragmentBuffer for NULL
> before use
> 
> According the Spec, the FragmentBuffers in FragmentTable are allocated
> by the application when calling Receive() function. This patch is to
> check whether the FragmentBuffer is valid or not.
> 
> Cc: Fu Siyuan <siyuan.fu@intel.com>
> Cc: Wang Fan <fan.wang@intel.com>
> Cc: Ye Ting <ting.ye@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
> ---
>  NetworkPkg/TcpDxe/TcpMain.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/NetworkPkg/TcpDxe/TcpMain.c b/NetworkPkg/TcpDxe/TcpMain.c
> index fc3713e..e349d2d 100644
> --- a/NetworkPkg/TcpDxe/TcpMain.c
> +++ b/NetworkPkg/TcpDxe/TcpMain.c
> @@ -38,10 +38,13 @@ TcpChkDataBuf (
>    UINT32 Index;
> 
>    UINT32 Len;
> 
>    for (Index = 0, Len = 0; Index < FragmentCount; Index++) {
> +    if (FragmentTable[Index].FragmentBuffer == NULL) {
> +      return EFI_INVALID_PARAMETER;
> +    }
>      Len = Len + FragmentTable[Index].FragmentLength;
>    }
> 
>    if (DataLen != Len) {
>      return EFI_INVALID_PARAMETER;
> --
> 1.9.5.msysgit.1



  reply	other threads:[~2017-12-22  7:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-22  7:07 [Patch 0/3] NetworkPkg/TcpDxe: Fix some issues in TcpDxe driver Jiaxin Wu
2017-12-22  7:07 ` [Patch 1/3] NetworkPkg/TcpDxe: Check FragmentBuffer for NULL before use Jiaxin Wu
2017-12-22  7:18   ` Fu, Siyuan [this message]
2017-12-22  7:07 ` [Patch 2/3] NetworkPkg/TcpDxe: Remove the redundant code Jiaxin Wu
2017-12-22  7:18   ` Fu, Siyuan

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