From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 677D4320CAD; Sat, 30 May 2026 17:50:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163456; cv=none; b=CZ9nK25CpWuclfsr/M5CGDmcaU+bIARavJYgxA6wtVhWULz1RBbgyB2kT3/OqLkkG6i5zAfzX1oHYfJinxX6+iJNWVoh+/M3jPosH7D5XsuG/9ha9Yutj48y7Sx00Ji+N8svcfqO9e3278WrbVr9COpQboX4ywHdLR4Xyiupjko= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163456; c=relaxed/simple; bh=FtDPm50zNsLsiVO4iEGZF+hhrXBNDbgNjL2wJ1osRes=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bQQi/1QvJ/HXsTX7Eqom5Lyx/tULRHfcRmmHVSx9bg88cID3gwLyIis2sG+15ILlFTlzkTos5fSVAwNvIvMtwY8mJ8gz5auICebzhvlXF5rDeG3evGCIXE1CD212ZJgRLDyRL6X9EhXgwfcpNa+waGjG/FQS2Z/iw1zzb8HwcV8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SH42ClCO; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="SH42ClCO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AB8121F00893; Sat, 30 May 2026 17:50:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780163455; bh=VTtqZJRrfWp+hC8+JoPp9Hb+f6hd+z/fknt1B9c5m2w=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=SH42ClCOzFSjRLTpz6n+TxR5b7sWvWTttLjn34ZTtBz4aUpgZV/2GyBOAwojt2d4n NldZ5KXRAmEE2Fa7ZZxRHoqVAYdP7LOvTCdaJKT74ghX95QHPrhSvOwH1ayna0PtvK nI28wNndPyMfXR2+RzCMmQM7gtiTE+3XQCeVghC0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kevin Cheng , Yosry Ahmed , Sean Christopherson Subject: [PATCH 5.15 234/776] KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 Date: Sat, 30 May 2026 17:59:08 +0200 Message-ID: <20260530160246.579116039@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kevin Cheng commit d99df02ff427f461102230f9c5b90a6c64ee8e23 upstream. INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0. Fixes: ff092385e828 ("KVM: SVM: Implement INVLPGA") Cc: stable@vger.kernel.org Signed-off-by: Kevin Cheng Reviewed-by: Yosry Ahmed Link: https://patch.msgid.link/20260228033328.2285047-3-chengkev@google.com [sean: tag for stable@] Signed-off-by: Sean Christopherson Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/svm/svm.c | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2363,6 +2363,9 @@ static int invlpga_interception(struct k gva_t gva = kvm_rax_read(vcpu); u32 asid = kvm_rcx_read(vcpu); + if (nested_svm_check_permissions(vcpu)) + return 1; + /* FIXME: Handle an address size prefix. */ if (!is_long_mode(vcpu)) gva = (u32)gva;