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Message-ID: <20200703230413.GA104749@linux.intel.com>
Date: Sat, 4 Jul 2020 02:04:13 +0300
From: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To: Borislav Petkov <bp@...en8.de>
Cc: Sean Christopherson <sean.j.christopherson@...el.com>,
x86@...nel.org, linux-sgx@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-security-module@...r.kernel.org,
Jethro Beekman <jethro@...tanix.com>,
Haitao Huang <haitao.huang@...ux.intel.com>,
Chunyang Hui <sanqian.hcy@...fin.com>,
Jordan Hand <jorhand@...ux.microsoft.com>,
Nathaniel McCallum <npmccallum@...hat.com>,
Seth Moore <sethmo@...gle.com>,
Suresh Siddha <suresh.b.siddha@...el.com>,
akpm@...ux-foundation.org, andriy.shevchenko@...ux.intel.com,
asapek@...gle.com, cedric.xing@...el.com, chenalexchen@...gle.com,
conradparker@...gle.com, cyhanish@...gle.com,
dave.hansen@...el.com, haitao.huang@...el.com,
josh@...htriplett.org, kai.huang@...el.com, kai.svahn@...el.com,
kmoy@...gle.com, ludloff@...gle.com, luto@...nel.org,
nhorman@...hat.com, puiterwijk@...hat.com, rientjes@...gle.com,
tglx@...utronix.de, yaozhangx@...gle.com
Subject: Re: [PATCH v33 11/21] x86/sgx: Linux Enclave Driver
On Fri, Jun 26, 2020 at 04:20:19PM +0200, Borislav Petkov wrote:
> On Fri, Jun 26, 2020 at 07:16:27AM -0700, Sean Christopherson wrote:
> > That being said, I agree that it would be safer to move sgx_calc_ssaframesize()
> > inside sgx_validate_secs() and only compute encl_size after the secs is
> > validated.
>
Changed as
if (!secs->ssa_frame_size)
return -EINVAL;
if (sgx_calc_ssa_frame_size(secs->miscselect, secs->xfrm) >
secs->ssa_frame_size)
return -EINVAL;
/Jarkko
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