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Sun, 22 Nov 2020 07:09:38 +0000 Received: from MWHPR06MB3102.namprd06.prod.outlook.com (2a01:111:e400:7e86::47) by DM6NAM10FT022.mail.protection.outlook.com (2a01:111:e400:7e86::92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3589.25 via Frontend Transport; Sun, 22 Nov 2020 07:09:38 +0000 Received: from MWHPR06MB3102.namprd06.prod.outlook.com ([fe80::2814:c86b:7446:74e1]) by MWHPR06MB3102.namprd06.prod.outlook.com ([fe80::2814:c86b:7446:74e1%3]) with mapi id 15.20.3499.035; Sun, 22 Nov 2020 07:09:38 +0000 From: Kun Qin To: gaoliming , "devel@edk2.groups.io" , "jiewen.yao@intel.com" CC: "'Wang, Jian J'" , "'Lu, XiaoyuX'" , "'Jiang, Guomin'" Subject: Re: [edk2-devel] [PATCH v1 1/1] CryptoPkg: BaseCryptLib: Fix buffer double free in CryptPkcs7VerifyEku Thread-Topic: [edk2-devel] [PATCH v1 1/1] CryptoPkg: BaseCryptLib: Fix buffer double free in CryptPkcs7VerifyEku Thread-Index: AQHWp1J0L2dhCABhE02IdzhaIfePH6nG7GcAgAnD2oCAAzzjiQ== Date: Sun, 22 Nov 2020 07:09:38 +0000 Message-ID: References: <20201021023228.1884-1-kun.q@outlook.com> ,<017801d6beff$73c708d0$5b551a70$@byosoft.com.cn> In-Reply-To: <017801d6beff$73c708d0$5b551a70$@byosoft.com.cn> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-incomingtopheadermarker: OriginalChecksum:89FEF9E70E9D30D67FFE74AB54EA3D8A3EBFF8239FE245E7239C5F70F2DC6D99;UpperCasedChecksum:8FFDAB5847EC5D2721E0AC8A49BA41FD67D145DF3DDC9EBE7C7A19848A399A89;SizeAsReceived:7310;Count:44 x-tmn: [6nENX3diLr3FAnFESXRl4bWK8XeIbdM8] x-ms-publictraffictype: Email x-incomingheadercount: 44 x-eopattributedmessage: 0 x-ms-office365-filtering-correlation-id: e1d48316-39ef-4b4b-cde2-08d88eb59386 x-ms-traffictypediagnostic: DM6NAM10HT027: x-ms-exchange-minimumurldomainage: groups.io#3667 x-microsoft-antispam: BCL:0; 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charset="gb2312" Content-Transfer-Encoding: quoted-printable

Hi Liming,

 

It will be great if we can get this in. But I have = been having trouble sending a v2 patch that incorporates Jiewen=A1=AFs =A1= =B0Reviewed-by=A1=B1 tag through git command line for the past week (no ot= her changes). It kept giving me an error of "No host provider available to service this request". Please let me know if y= ou have any suggestions.

 

Thanks,

Kun

 

 

From: gaoliming
Sent: Thursday, November 19, 2020 9:39 PM
To: devel@edk2.groups.io; jiewen.yao@intel.com; 'Kun Qin'
Cc: 'Wang, Jian J'; 'Lu, XiaoyuX'; 'Jiang, Guomi= n'
Subject: =BB=D8= = =B8=B4: [edk2-devel] [PATCH v1 1/1] CryptoPkg: BaseCryptLib: Fix bu= ffer double free in CryptPkcs7VerifyEku

 

Kun:
 This is a bug fix. It passed code review. Do you request to merge it= for
this stable tag 202011?

Thanks
Liming
> -----=D3=CA=BC=FE=D4=AD=BC=FE-----
> =B7=A2=BC=FE=C8=CB: bounce+27952+67567+4905953+8761045@= groups.io
> <bounce+27952+67567+4905953+8761045@groups.io> =B4=FA=B1=ED Yao, Jiewen
> =B7=A2=CB=CD=CA=B1=BC=E4: 2020=C4=EA11=D4=C214=C8=D5 8:32
> =CA=D5=BC=FE=C8=CB: Kun Qin <kun.q@outlook.com>; = devel@edk2.groups.io
> =B3=AD=CB=CD: Wang, Jian J <jian.j.wang@intel.com>= ;; Lu, XiaoyuX
> <xiaoyux.lu@intel.com>; Jiang, Guomin <guomin.jiang@intel.co= m>; Yao,
> Jiewen <jiewen.yao@intel.com>
> =D6=F7=CC=E2: Re: [edk2-devel] [PATCH v1 1/1] CryptoPkg= : BaseCryptLib: Fix buffer
> double free in CryptPkcs7VerifyEku
>
> Sorry, I missed this email.
>
> Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
>
>
> > -----Original Message-----
> > From: Kun Qin <kun.q@outlook.com>
> > Sent: Wednesday, October 21, 2020 10:32 AM
> > To: devel@edk2.groups.io
> > Cc: Wang, Jian J <jian.j.wang@intel.com>; Lu, XiaoyuX
> > <xiaoyux.lu@intel.com>; Yao, Jiewen <jiewen.yao@intel.c= om>; Jiang,
> > Guomin <guomin.jiang@intel.com>
> > Subject: [PATCH v1 1/1] CryptoPkg: BaseCryptLib: Fix buffer doub= le free
in
> > CryptPkcs7VerifyEku
> >
> > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3D2459
> >
> > SignerCert is part of Pkcs7 instance when both have valid conten= t.
OpenSLL
> > PKCS7_free function will release the memory of SignerCert when applicable.
> > Freeing SignerCert with X509_free again might cause page fault i= f use-
> > after-free guard is enabled.
> >
> > Cc: Jian J Wang <jian.j.wang@intel.com>
> > Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
> > Cc: Jiewen Yao <jiewen.yao@intel.com>
> > Cc: Guomin Jiang <guomin.jiang@intel.com>
> >
> > Signed-off-by: Kun Qin <kun.q@outlook.com>
> > ---
> >  CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs7VerifyEku.c | = 4 ----
> >  1 file changed, 4 deletions(-)
> >
> > diff --git a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs7VerifyE= ku.c
> > b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs7VerifyEku.c
> > index c9fdb65b99d1..40cc39afe7dd 100644
> > --- a/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs7VerifyEku.c > > +++ b/CryptoPkg/Library/BaseCryptLib/Pk/CryptPkcs7VerifyEku.c > > @@ -508,10 +508,6 @@ Exit:
> >      free (SignedData);
> >
> >    }
> >
> >
> >
> > -  if (SignerCert !=3D NULL) {
> >
> > -    X509_free (SignerCert);
> >
> > -  }
> >
> > -
> >
> >    if (Pkcs7 !=3D NULL) {
> >
> >      PKCS7_free (Pkcs7);
> >
> >    }
> >
> > --
> > 2.28.0.windows.1
>
>
>
>
>


 

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