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 EB778C32771 for ; Fri, 19 Aug 2022 15:39:56 +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=PfG/s+Ye1Iqqj5yu7Qg0E+tFpNEe7s1XRAzKXX+EMcM=; b=aWK8t9fmAqdAeb RGb/Xwd8TYsZZ6FKbJtuIDmpdKnyihDJCQB0AOm9dE1nUisxDhYwMPSecLYTyJW8bVwmgqB4d9lpt nTWwLBxILPQyGhGpMA9dY4EXTMYl7JGaU9F1N0cl4+srvIL17lagOQbT+xGyxEBNEJ57Y2RhoNeKB pR8gf4oySYgLkx5vaWYba2WhYAWCn/L5B2XiD0uLmG54m99Lx1bc1bP9VOswQ+ebzQxlUH4wRdgJd 03N/5ZneMqQoFCRYWDbqcCOhV4erUpDaTta6BI2E20fWYcXyTyjgmMLr0liHTvmQbp8g1JYS14ACu fLY2CoLPkZIrNyxDbWyg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oP46C-009zot-34; Fri, 19 Aug 2022 15:39:52 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oP469-009zmi-2u for kexec@lists.infradead.org; Fri, 19 Aug 2022 15:39:50 +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 9A9646162D; Fri, 19 Aug 2022 15:39:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD584C4314B; Fri, 19 Aug 2022 15:39:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660923588; bh=ADw06pRCuPZeTUd/Uq+mdKxMJyGKpyXRKWJnc9JYbVQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GObXdGItgM49Vv4iy/DHgcbZGw0WwMWQdLdayWxyiCuT+akEZOMkmlnab6U4FUD3X qakePs4Bcn4dsM3GualuVlIHuFHskTCXt1NxRIobF1kwJ2pIrdQd5s1ZqxQiy9wY7c CcM6nBx/bpFz0WiMRfqGhRbgippJfbOBWsalV79o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, kexec@lists.infradead.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, Michal Suchanek , Coiby Xu , Mimi Zohar Subject: [PATCH 5.19 6/7] kexec, KEYS: make the code in bzImage64_verify_sig generic Date: Fri, 19 Aug 2022 17:39:22 +0200 Message-Id: <20220819153711.785888674@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_083949_260344_AFA7F5FF X-CRM114-Status: GOOD ( 15.39 ) 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 c903dae8941deb55043ee46ded29e84e97cd84bb upstream. commit 278311e417be ("kexec, KEYS: Make use of platform keyring for signature verify") adds platform keyring support on x86 kexec but not arm64. The code in bzImage64_verify_sig uses the keys on the .builtin_trusted_keys, .machine, if configured and enabled, .secondary_trusted_keys, also if configured, and .platform keyrings to verify the signed kernel image as PE file. Cc: kexec@lists.infradead.org Cc: keyrings@vger.kernel.org Cc: linux-security-module@vger.kernel.org Reviewed-by: Michal Suchanek Signed-off-by: Coiby Xu Signed-off-by: Mimi Zohar Signed-off-by: Greg Kroah-Hartman --- arch/x86/kernel/kexec-bzimage64.c | 20 +------------------- include/linux/kexec.h | 7 +++++++ kernel/kexec_file.c | 17 +++++++++++++++++ 3 files changed, 25 insertions(+), 19 deletions(-) --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include @@ -528,28 +527,11 @@ static int bzImage64_cleanup(void *loade return 0; } -#ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG -static int bzImage64_verify_sig(const char *kernel, unsigned long kernel_len) -{ - int ret; - - ret = verify_pefile_signature(kernel, kernel_len, - VERIFY_USE_SECONDARY_KEYRING, - VERIFYING_KEXEC_PE_SIGNATURE); - if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) { - ret = verify_pefile_signature(kernel, kernel_len, - VERIFY_USE_PLATFORM_KEYRING, - VERIFYING_KEXEC_PE_SIGNATURE); - } - return ret; -} -#endif - const struct kexec_file_ops kexec_bzImage64_ops = { .probe = bzImage64_probe, .load = bzImage64_load, .cleanup = bzImage64_cleanup, #ifdef CONFIG_KEXEC_BZIMAGE_VERIFY_SIG - .verify_sig = bzImage64_verify_sig, + .verify_sig = kexec_kernel_verify_pe_sig, #endif }; --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -19,6 +19,7 @@ #include #include +#include /* Location of a reserved region to hold the crash kernel. */ @@ -212,6 +213,12 @@ static inline void *arch_kexec_kernel_im } #endif +#ifdef CONFIG_KEXEC_SIG +#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION +int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len); +#endif +#endif + extern int kexec_add_buffer(struct kexec_buf *kbuf); int kexec_locate_mem_hole(struct kexec_buf *kbuf); --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -123,6 +123,23 @@ void kimage_file_post_load_cleanup(struc } #ifdef CONFIG_KEXEC_SIG +#ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION +int kexec_kernel_verify_pe_sig(const char *kernel, unsigned long kernel_len) +{ + int ret; + + ret = verify_pefile_signature(kernel, kernel_len, + VERIFY_USE_SECONDARY_KEYRING, + VERIFYING_KEXEC_PE_SIGNATURE); + if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) { + ret = verify_pefile_signature(kernel, kernel_len, + VERIFY_USE_PLATFORM_KEYRING, + VERIFYING_KEXEC_PE_SIGNATURE); + } + return ret; +} +#endif + static int kexec_image_verify_sig(struct kimage *image, void *buf, unsigned long buf_len) { _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec