From nobody Mon Apr 13 05:38:14 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D71125B1CB; Mon, 9 Mar 2026 08:38:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.3 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773045541; cv=none; b=d9cTKnN1Jh/ISKkTluY0EZQko9lIXNBt7DEmtceShPJ6CssArqTS729zj3XwHQ9hBOjHtprorMauhjZOxU4wAZhyCKW4PxP3RCJX5MRd1oJsfhOxCYe/toQrzkxv37YDMiVBO5fsZ9xUYEBtArG/z7OIlxKv2oHZKoo7z3AMg1s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773045541; c=relaxed/simple; bh=TQTLifyu2zqwbCWFiY8ibGwTvmt/pIaW9LTL1XUPaSU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=G3uRk0/2oCioeBi3hiRPp1xAwSf/rSVaenrtqp9GXBdC43oM7tPSzyiNc7rw+DxbBqiPROFK2NCyN8t/x/VxLH4mpgTcEkFYnh97mFJxAmJvP67+VyLaCurTfL34ap4n2YKGg65xXhZ6r20D1tkKngnPVlNqMS8LhNWYZvRZF/M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=NeCF/CZL; arc=none smtp.client-ip=117.135.210.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="NeCF/CZL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=ka wnl0rjcaGCiqPX+Qe1/SCSsRQ7d3Y4Fu+4GKNQY+U=; b=NeCF/CZLd4/kUi1bjZ Zyr5pJKSaeJbCSL35nxd9rJ7VU1zhZUusmB1A1ErfCpNOGDxV4x9n88DMBYGyOsK cHOhbEVi/1JcOTGtNBFSwEYBCynt/W2u4fQTnQTmcp0aL9TcfuS8ZtqcMZgcxar4 TXHuh8CUZqPaqZxPUXRa4wiUs= Received: from a317-tower2.. (unknown []) by gzga-smtp-mtada-g0-2 (Coremail) with SMTP id _____wC3HXIUh65pPnIkRQ--.28712S2; Mon, 09 Mar 2026 16:38:45 +0800 (CST) From: pcjer To: kvm@vger.kernel.org Cc: seanjc@google.com, pbonzini@redhat.com, linux-kernel@vger.kernel.org Subject: [PATCH] KVM: x86/tdp_mmu: Fix base gfn check when zapping private huge SPTE Date: Mon, 9 Mar 2026 16:38:44 +0800 Message-ID: <20260309083844.217215-1-pcj3195161583@163.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wC3HXIUh65pPnIkRQ--.28712S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKFyDtr13JrW7Aw48Aw13urg_yoW3WFb_Z3 W7K3yxGrW5JF18Xa1Ikws0yrW3Cwn7ur4ruFs5tryjy3WDtFs0yw4Ik3WDA3y8JrZ8WFZ8 CFZxCFWfGr42kjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU8fsqJUUUUU== X-CM-SenderInfo: 5sfmjiqzvrliqvytqiywtou0bp/xtbC8hXss2muhxWDgwAA3t Content-Type: text/plain; charset="utf-8" Signed-off-by: pcjer --- arch/x86/kvm/mmu/tdp_mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index 1266d5452..8482a85d6 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -1025,8 +1025,8 @@ static bool tdp_mmu_zap_leafs(struct kvm *kvm, struct= kvm_mmu_page *root, =20 slot =3D gfn_to_memslot(kvm, gfn); if (kvm_hugepage_test_mixed(slot, gfn, iter.level) || - (gfn & mask) < start || - end < (gfn & mask) + KVM_PAGES_PER_HPAGE(iter.level)) { + (gfn & ~mask) < start || + end < (gfn & ~mask) + KVM_PAGES_PER_HPAGE(iter.level)) { WARN_ON_ONCE(!can_yield); if (split_sp) { sp =3D split_sp; --=20 2.43.0