Re: [cip-dev] hitachi_omap defconfigs

["Hidehiro Kawai" <hidehiro.kawai.ez@hitachi.com>]

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Kudo-san,

I'm sorry about this.

I think we can disable some DRM drivers, but I haven't received
response from related persons yet.
So, please simply disable nouveau driver.

Best regards,

Hidehiro Kawai
Hitachi, Ltd. Research & Development Group

> From: masashi.kudo@cybertrust.co.jp <masashi.kudo@cybertrust.co.jp>
> 
> Hi, Kawai-san,
> 
> It's been a while since we last chatted about this issue.
> If it takes more time, shall we disable nouveau driver as you suggested?
> 
> Best regards,
> --
> M. Kudo
> 
> > -----Original Message-----
> > From: 工藤　雅司（CTJ　OSS事業推進室）
> > Sent: Friday, December 25, 2020 6:28 PM
> > To: 河合英宏 / KAWAI，HIDEHIRO <hidehiro.kawai.ez@hitachi.com>;
> > 'wens@csie.org' <wens@csie.org>
> > Cc: cip-dev@lists.cip-project.org; cip-members@lists.cip-project.org
> > Subject: RE: hitachi_omap defconfigs
> >
> > Hi, Kawai-san,
> >
> > Thanks very much for letting us know the current status.
> > We will wait for your response, so I would appreciate it if you can keep us updated.
> >
> > Best regards,
> > --
> > M. Kudo
> >
> > > -----Original Message-----
> > > From: 河合英宏 / KAWAI，HIDEHIRO <hidehiro.kawai.ez@hitachi.com>
> > > Sent: Friday, December 25, 2020 3:34 PM
> > > To: 工藤　雅司（CTJ　OSS事業推進室） <masashi.kudo@cybertrust.co.jp>;
> > > 'wens@csie.org' <wens@csie.org>
> > > Cc: cip-dev@lists.cip-project.org; cip-members@lists.cip-project.org
> > > Subject: RE: hitachi_omap defconfigs
> > >
> > > Kudo-san and ChenYu-san,
> > >
> > > We are sorry for the inconvenience.  The confirmation will take some time.
> > > If you'd like to solve this issue quickly, please disable nouveau driver now.
> > > After the confirmation, we'll send an updated defconfig.
> > >
> > > Best regards,
> > >
> > > Hidehiro Kawai
> > > Hitachi, Ltd. Research & Development Group
> > >
> > > > From: cip-members@lists.cip-project.org
> > > > <cip-members@lists.cip-project.org> On Behalf Of Hidehiro Kawai
> > > >
> > > > Hello Kudo-san and ChenYu-san,
> > > >
> > > > Thanks for reporting the issue.
> > > > Including nouveau driver, it seems that our defconfigs have some
> > > > unneeded drivers.  I'm confirming this with our development team,
> > > > please wait
> > > a moment.
> > > >
> > > > Best regards,
> > > >
> > > > Hidehiro Kawai
> > > > Hitachi, Ltd. Research & Development Group
> > > >
> > > > > From: cip-dev@lists.cip-project.org
> > > > > <cip-dev@lists.cip-project.org> On Behalf Of
> > > > > masashi.kudo@cybertrust.co.jp Hi, Hitachi-team,
> > > > >
> > > > > Last week, CVE-2020-27820 [drm/nouveau UAF] was reported by the
> > > following email.
> > > > > https://clicktime.symantec.com/3HW3CdVzyukGSgx2iFmjhKS7Vc?u=http
> > > > > s%3A%2F%2Fclicktime.symantec.com%2F3Hrgtrrm6ninbLpVgrZpbS37Vc%3F
> > > > > u%3Dhttps%25
> > > > > 3A
> > > > > %2 F%2Flore.kernel.org%2Fcip-dev%2FCAGb2v641%3DSr
> > > > >
> > >
> > fdDh9CS4fwWVrfuCG2O2oni9V_QsVJEza%2Bg5mRg%40mail.gmail.com%2FT%2
> > > F%23
> > > > > u
> > > > >
> > > > > According to the kernel team analysis, it seems that the nouveau
> > > > > driver is enabled in hitachi_omap defconfigs for both
> > > > > 4.4 and 4.19.
> > > > > However, the configs are for OMAP platforms which, according to
> > > > > our
> > > understanding, don't have PCI for a graphics card.
> > > > > So we think that the hitachi_omap defconfigs should be corrected
> > > > > to disable
> > > the nouveau driver.
> > > > >
> > > > > We could be wrong, so please advise us. Once you confirm it to
> > > > > be corrected,
> > > we will go ahead to change it.
> > > > > Best regards,
> > > > > --
> > > > > M. Kudo
> > > >
> > > >
> > > > 

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