From: Sasha Levin <sashal@kernel.org>
To: gregkh@linuxfoundation.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Sean Christopherson <seanjc@google.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Jack Wang <jinpu.wang@ionos.com>
Subject: Re: [stable-6.12 1/3] KVM: SEV: Ignore MMIO requests of length '0'
Date: Fri, 26 Jun 2026 13:54:34 -0400 [thread overview]
Message-ID: <stable-reply-item010-sev-612-p1-20260626@kernel.org> (raw)
In-Reply-To: <20260626124539.201250-2-jinpu.wang@ionos.com>
> [stable-6.12 1/3] KVM: SEV: Ignore MMIO requests of length '0'
Two concerns on the 6.12 adaptation: upstream guards a merged MMIO_READ/WRITE
case, but 6.12 has separate cases and the !len guard was added only to
MMIO_WRITE (READ left unguarded); and there's a stray extra break; (two in
a row) in the READ case.
--
Thanks,
Sasha
next prev parent reply other threads:[~2026-06-26 17:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-26 12:42 [stable-6.12 0/3] 3 SEV fixes backport Jack Wang
2026-06-26 12:42 ` [stable-6.12 1/3] KVM: SEV: Ignore MMIO requests of length '0' Jack Wang
2026-06-26 15:37 ` Tom Lendacky
2026-06-26 19:25 ` Jinpu Wang
2026-06-26 17:54 ` Sasha Levin [this message]
2026-06-26 12:42 ` [stable-6.12 2/3] KVM: SEV: Reject MMIO requests larger than 8 bytes with GHCB v2+ Jack Wang
2026-06-26 12:42 ` [stable-6.12 3/3] KVM: SEV: Ignore Port I/O requests of length '0' Jack Wang
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