From patchwork Wed Jun 28 17:56:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 13296114 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 783F7EB64D7 for ; Wed, 28 Jun 2023 17:56:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232103AbjF1R4z (ORCPT ); Wed, 28 Jun 2023 13:56:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232429AbjF1Rz7 (ORCPT ); Wed, 28 Jun 2023 13:55:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13207ED; Wed, 28 Jun 2023 10:55:59 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 935F16141D; Wed, 28 Jun 2023 17:55:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ABBEC433C9; Wed, 28 Jun 2023 17:55:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1687974958; bh=7gxVFglFtXDu/AnNBVBeHPlv7TElOsSUgfmrlZBHPf0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VAGQADKajLlW1y4fkCGn3p1Dl/RgpYmd4NHIx7S2mGSb25bdu9R0GYH1edCFjDrWT tXuz1a1LhxR9StVgXR8q7G8ihL/kHAHNTNvO02H6CAtQ53yaCW8SQxL91q+IcPztHO x8k9ggymNK9nKqeSCuiHLU8YFCgb/bcppPK6nN0BDcvaxUzXBhxLzrU0buDQaaxdY9 P8nN1N9Z6XKDbOIYmGbz83ZnbMmWUFe74RzFn5BkhzaXhX5Kqe3n2fZ78BKFnP/5dh A2L1fOV2uIw7mb2Vyd7sBLkGNsY3X2Vw7VjYyvnMt6jxpNh8HI9rlL4fD0cP0LurMh bK1wlm/YrdjmA== Date: Wed, 28 Jun 2023 11:56:52 -0600 From: "Gustavo A. R. Silva" To: aacraid@microsemi.com, "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Kees Cook , "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org Subject: [PATCH 07/10][next] scsi: aacraid: Replace one-element array with flexible-array member in struct user_sgmap64 Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org Replace one-element array with flexible-array member in struct user_sgmap64. This results in no differences in binary output. Issue found with the help of Coccinelle and audited and fixed, manually. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/ClangBuiltLinux/linux/issues/1851 Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook --- drivers/scsi/aacraid/aacraid.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h index 87015dd2abd9..94eb83d38be6 100644 --- a/drivers/scsi/aacraid/aacraid.h +++ b/drivers/scsi/aacraid/aacraid.h @@ -522,7 +522,7 @@ struct sgmap64 { struct user_sgmap64 { u32 count; - struct user_sgentry64 sg[1]; + struct user_sgentry64 sg[]; }; struct sgmapraw {