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From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [GIT PULL] KVM/arm64 fixes for 6.8, take #3
Date: Wed, 21 Feb 2024 10:34:20 +0000	[thread overview]
Message-ID: <86ttm22jir.wl-maz@kernel.org> (raw)
In-Reply-To: <CABgObfYhVK+qF25h8+hhuyCvbgfpocDo0UDac3CTEHghRGww+w@mail.gmail.com>

On Wed, 21 Feb 2024 10:22:04 +0000,
Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
> On Wed, Feb 21, 2024 at 11:17 AM Marc Zyngier <maz@kernel.org> wrote:
> >
> > Hey Paolo,
> >
> > Another week, another couple of fixes. This time, two fixes for the
> > ITS emulation that could result in non-existent LPIs being used, with
> > unpredictable consequences. Thanks to Oliver for spotting those as he
> > was reworking the ITS translation cache.
> 
> The consequences would really be NULL pointer dereferences, wouldn't they?

That's the effect. The consequences depend on how the fault is
handled ('benign' oops, panic, or reboot...).

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [GIT PULL] KVM/arm64 fixes for 6.8, take #3
Date: Wed, 21 Feb 2024 10:34:20 +0000	[thread overview]
Message-ID: <86ttm22jir.wl-maz@kernel.org> (raw)
In-Reply-To: <CABgObfYhVK+qF25h8+hhuyCvbgfpocDo0UDac3CTEHghRGww+w@mail.gmail.com>

On Wed, 21 Feb 2024 10:22:04 +0000,
Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
> On Wed, Feb 21, 2024 at 11:17 AM Marc Zyngier <maz@kernel.org> wrote:
> >
> > Hey Paolo,
> >
> > Another week, another couple of fixes. This time, two fixes for the
> > ITS emulation that could result in non-existent LPIs being used, with
> > unpredictable consequences. Thanks to Oliver for spotting those as he
> > was reworking the ITS translation cache.
> 
> The consequences would really be NULL pointer dereferences, wouldn't they?

That's the effect. The consequences depend on how the fault is
handled ('benign' oops, panic, or reboot...).

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2024-02-21 10:34 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-21 10:17 [GIT PULL] KVM/arm64 fixes for 6.8, take #3 Marc Zyngier
2024-02-21 10:17 ` Marc Zyngier
2024-02-21 10:22 ` Paolo Bonzini
2024-02-21 10:22   ` Paolo Bonzini
2024-02-21 10:34   ` Marc Zyngier [this message]
2024-02-21 10:34     ` Marc Zyngier

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