From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8CD881FC7DA; Wed, 6 Nov 2024 12:55:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730897735; cv=none; b=Ekwn6qkEMtf6tDMSi2H0WCMj+3FtNMvsAO5iCNodMMxWqXsHYpLnsWwgQ0ossBm3tKZWvHtCFtszB3OV8mBS6BcexYoFPzxAkbUUt9ncUl0wdUTN/yKvdQvq0279SGN/2J1WHqIOuzaryJHbxzuAg0lPisjjYmbk3yH18WBpQ9Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730897735; c=relaxed/simple; bh=TMUggIWQG66uPpO7d1uynyRpfdSJSTtncwvw4ZrPjjg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VF53Li63OpVk1nZ4UV48p0fw3QrQ5TkrhUYG1eA49v3Pp/vPbWTh5wVTJgXgLuC+46rGAMgUu01H/t8qLWmD+9n9Q7XhxxxP/br7gnj+3dLub3w55zdibHxB9DDDgeqwrQLWA7oVtTitXgR9ZLX9dJHXujYoWhPeXKvNkUPzmlo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ud6VGV7H; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Ud6VGV7H" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DDC47C4CEF0; Wed, 6 Nov 2024 12:55:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1730897735; bh=TMUggIWQG66uPpO7d1uynyRpfdSJSTtncwvw4ZrPjjg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ud6VGV7HSOL6iLK8hlJSrBO7n3HrRnjpRdQaS2DEwyD1gqpmeINenmzSylem2vr/3 hdRFHnpaeFk1sKt6fWh3XrlXYZ4wPbfCssrm2neYy2oYWPuYc/igKgEXcbOVbpP2fL C7A72qZQUDLkUXMpdcGF/vQBr9VCr/8Y20sFkqf0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ard Biesheuvel , Heinrich Schuchardt , Emil Renner Berthing , Palmer Dabbelt , Sasha Levin Subject: [PATCH 6.6 116/151] riscv: efi: Set NX compat flag in PE/COFF header Date: Wed, 6 Nov 2024 13:05:04 +0100 Message-ID: <20241106120312.059423246@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241106120308.841299741@linuxfoundation.org> References: <20241106120308.841299741@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Heinrich Schuchardt [ Upstream commit d41373a4b910961df5a5e3527d7bde6ad45ca438 ] The IMAGE_DLLCHARACTERISTICS_NX_COMPAT informs the firmware that the EFI binary does not rely on pages that are both executable and writable. The flag is used by some distro versions of GRUB to decide if the EFI binary may be executed. As the Linux kernel neither has RWX sections nor needs RWX pages for relocation we should set the flag. Cc: Ard Biesheuvel Cc: Signed-off-by: Heinrich Schuchardt Reviewed-by: Emil Renner Berthing Fixes: cb7d2dd5612a ("RISC-V: Add PE/COFF header for EFI stub") Acked-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20240929140233.211800-1-heinrich.schuchardt@canonical.com Signed-off-by: Palmer Dabbelt Signed-off-by: Sasha Levin --- arch/riscv/kernel/efi-header.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/efi-header.S b/arch/riscv/kernel/efi-header.S index 515b2dfbca75b..c5f17c2710b58 100644 --- a/arch/riscv/kernel/efi-header.S +++ b/arch/riscv/kernel/efi-header.S @@ -64,7 +64,7 @@ extra_header_fields: .long efi_header_end - _start // SizeOfHeaders .long 0 // CheckSum .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem - .short 0 // DllCharacteristics + .short IMAGE_DLL_CHARACTERISTICS_NX_COMPAT // DllCharacteristics .quad 0 // SizeOfStackReserve .quad 0 // SizeOfStackCommit .quad 0 // SizeOfHeapReserve -- 2.43.0