From: Sasha Levin <sashal@kernel.org>
To: seanjc@google.com, pbonzini@redhat.com
Cc: Sasha Levin <sashal@kernel.org>,
stable@vger.kernel.org, Rajani Kantha <681739313@139.com>
Subject: Re: [PATCH 5.15.y] KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
Date: Mon, 25 May 2026 11:33:08 -0400 [thread overview]
Message-ID: <20260525152512.agent5-0005@kernel.org> (raw)
In-Reply-To: <20260525091427.11691-1-681739313@139.com>
On Mon, May 25, 2026 at 05:14:27PM +0800, Rajani Kantha wrote:
> From: Sean Christopherson <seanjc@google.com>
>
> commit ef01cac401f18647d62720cf773d7bb0541827da upstream.
>
> Acquire a lock on kvm->srcu when userspace is getting MP state to handle a
> rather extreme edge case where "accepting" APIC events, i.e. processing
> pending INIT or SIPI, can trigger accesses to guest memory.
Queued for 5.15, thanks.
--
Thanks,
Sasha
prev parent reply other threads:[~2026-05-25 15:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-25 9:14 [PATCH 5.15.y] KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses Rajani Kantha
2026-05-25 15:33 ` Sasha Levin [this message]
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