From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 82D0CC32771 for ; Fri, 19 Aug 2022 15:40:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/rgSIFn3dRykzqGcE2n47MB3yjrQ5K4jr5tCJHWh1AA=; b=lmQrZv5uJE3tbn ugXzh4hcJU5XIwrLkIJAsf5bgZqp2o4cbwGmRllQFj/zeTMI/M/X7F2RN1/RgEOkf9MtnSu8PalYO fcEXT3v0L4SlXpGwezhehD2LN5izipT1HhZ//wgIVbOBJhqQMuQDkdylY5tJ/gxsESYGQxomLNHJM ttqXb7iNZ6lq9TWVz4Lozoo6d0onglFQTZJOEisjmWUo15Mv47S3YMTs3eXQQADFWpcKmzcmytwnt rrxoGRi42DePdO/VwUKOYU7PRcIyCi7/qBqH0E483c+Miq1pywsvgYn8UZifC1FUbilFduCbv1iVR MPvUF0lG76+weK7SnVEQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oP46F-009zrU-UY; Fri, 19 Aug 2022 15:39:55 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oP46C-009zpG-T9 for kexec@lists.infradead.org; Fri, 19 Aug 2022 15:39:54 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 7079D61616; Fri, 19 Aug 2022 15:39:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05DD3C433C1; Fri, 19 Aug 2022 15:39:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660923591; bh=q01TiepYCgbd3YDF3Teq86Su7fa1NExU5eO/8Pw2Xpc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X+dEgBBtmB7vhjo6RS6FqZ+Eojdbk9m/Dqt2/HbxYNf35l+rLuTmI2Lv0ksFWswxB O5Z2BxWA5E53k5cbW70k5OmQY+Y8exw4B43RdncEIqglaHsfMJSXNO7+vZh3nvIY1T GuufNQZ1CyfSQfyEA5eYZ8TQSonvhbYDrO8ndxvg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Baoquan He , kexec@lists.infradead.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, Michal Suchanek , Will Deacon , Coiby Xu , Mimi Zohar Subject: [PATCH 5.19 7/7] arm64: kexec_file: use more system keyrings to verify kernel image signature Date: Fri, 19 Aug 2022 17:39:23 +0200 Message-Id: <20220819153711.815836041@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220819153711.552247994@linuxfoundation.org> References: <20220819153711.552247994@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220819_083953_046694_8392B32D X-CRM114-Status: GOOD ( 13.85 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org From: Coiby Xu commit 0d519cadf75184a24313568e7f489a7fc9b1be3b upstream. Currently, when loading a kernel image via the kexec_file_load() system call, arm64 can only use the .builtin_trusted_keys keyring to verify a signature whereas x86 can use three more keyrings i.e. .secondary_trusted_keys, .machine and .platform keyrings. For example, one resulting problem is kexec'ing a kernel image would be rejected with the error "Lockdown: kexec: kexec of unsigned images is restricted; see man kernel_lockdown.7". This patch set enables arm64 to make use of the same keyrings as x86 to verify the signature kexec'ed kernel image. Fixes: 732b7b93d849 ("arm64: kexec_file: add kernel signature verification support") Cc: stable@vger.kernel.org # 105e10e2cf1c: kexec_file: drop weak attribute from functions Cc: stable@vger.kernel.org # 34d5960af253: kexec: clean up arch_kexec_kernel_verify_sig Cc: stable@vger.kernel.org # 83b7bb2d49ae: kexec, KEYS: make the code in bzImage64_verify_sig generic Acked-by: Baoquan He Cc: kexec@lists.infradead.org Cc: keyrings@vger.kernel.org Cc: linux-security-module@vger.kernel.org Co-developed-by: Michal Suchanek Signed-off-by: Michal Suchanek Acked-by: Will Deacon Signed-off-by: Coiby Xu Signed-off-by: Mimi Zohar Signed-off-by: Greg Kroah-Hartman --- arch/arm64/kernel/kexec_image.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) --- a/arch/arm64/kernel/kexec_image.c +++ b/arch/arm64/kernel/kexec_image.c @@ -14,7 +14,6 @@ #include #include #include -#include #include #include #include @@ -130,18 +129,10 @@ static void *image_load(struct kimage *i return NULL; } -#ifdef CONFIG_KEXEC_IMAGE_VERIFY_SIG -static int image_verify_sig(const char *kernel, unsigned long kernel_len) -{ - return verify_pefile_signature(kernel, kernel_len, NULL, - VERIFYING_KEXEC_PE_SIGNATURE); -} -#endif - const struct kexec_file_ops kexec_image_ops = { .probe = image_probe, .load = image_load, #ifdef CONFIG_KEXEC_IMAGE_VERIFY_SIG - .verify_sig = image_verify_sig, + .verify_sig = kexec_kernel_verify_pe_sig, #endif }; _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec