linux-kernel - Re: [PATCH 1/2] x86/hyperv: Fix NULL deref in set_hv_tscchange

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Message-ID: <20211104122447.tfeyzlu5oyv6fzpc@liuwe-devbox-debian-v2>
Date:   Thu, 4 Nov 2021 12:24:47 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Wei Liu <wei.liu@...nel.org>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org
Subject: Re: [PATCH 1/2] x86/hyperv: Fix NULL deref in set_hv_tscchange_cb()
 if Hyper-V setup fails

On Thu, Nov 04, 2021 at 12:10:30PM +0000, Wei Liu wrote:
> On Tue, Nov 02, 2021 at 02:31:57PM +0000, Sean Christopherson wrote:
> > On Tue, Nov 02, 2021, Wei Liu wrote:
> > > On Fri, Oct 29, 2021 at 11:14:59AM +0200, Vitaly Kuznetsov wrote:
> > > > Sean Christopherson <seanjc@...gle.com> writes:
> > > > The patch looks good, however, it needs to be applied on top of the
> > > > already merged:
> > > > 
> > > > https://lore.kernel.org/linux-hyperv/20211012155005.1613352-1-vkuznets@redhat.com/
> > > 
> > > Sean, are you going to rebase?
> > 
> > Yep, I'll rebase.
> 
> Thank you!

One further note: Vitaly's patch just hit mainline two days ago, but
v5.16-rc1 is not tagged yet. Feel free to base you new patches on
hyperv-next or linux-next. I will handle the rest.  Or you can wait
until v5.16-rc1 is tagged and base your patches on that. Your call.

Thanks,
Wei.

> 
> Wei.