From patchwork Thu Jul 11 17:28:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 812458 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 BC04D16DEC2; Thu, 11 Jul 2024 17:28:22 +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=1720718902; cv=none; b=DMzR/zEoe+liTgOh9tQQ2Zso5GWfqoLtQk4kTHImg8Lds9cZtcqXLLS3szBCzMX4j/aXDJSF2GEt2UoTVfRyQESmSoIGSdP9KdF4k00SE44GcLczp/IZ4i8uo/c/6V69vSzbn+BZ7UdHfKMNsfVLOijtkOk8XK/Yg60DX/dl0jE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720718902; c=relaxed/simple; bh=MnZHveL4bhw7QKqCedPp+xc07Hey0fundjFehsgmf5w=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=GpFvMvqF7Eb85K1XCwI6FO4p7sG8H3pEGIe5DU19l24tc63ghpXleOHdJtnmRmS2927F4LQp1lv0XXfI2G5pYI31Yve0xQypBGLx6S10rXv+Y4KI2xTWwSiCH2Ya/e50rBwKXP2cXKyhA960Pb/pUZ1Z2fDzD/a3l5BDuu23cwM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LY9g7/TR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LY9g7/TR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 74D08C4AF18; Thu, 11 Jul 2024 17:28:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720718902; bh=MnZHveL4bhw7QKqCedPp+xc07Hey0fundjFehsgmf5w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LY9g7/TRYb/UetyNO/Ca4jI5BkPaGisNF3rTpxrp/rYmc43/OSVVGBUGtV4RUVKea DvEnEYhRFasDp+9l0/6exkd6gIqsDT7O7+zSeRN8M+HUI8AThYGX4Ol9crN/HCe7lB y/uarBwBr5PJYavJZLJblTJ+qMt/lxUFDF/EeDm5A+8hN+iFOd6kIW8/Zj3xtGcHgE k5p8LLf4PPsv2I411WZXuvS2qs1D71AbyOVud2zmheZBeO0zRtDaclOedw7eigXbjE 9icMa9snQibwOVkPlhcoGXDpvFo4rC9GBrOjr5095UbaKEbek4JQmxk/eERLVPL0vO BGNd8cc3zNVsg== From: Kees Cook To: Sathya Prakash Cc: Kees Cook , Sreekanth Reddy , Suganath Prabu Subramani , "Gustavo A. R. Silva" , MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/6] scsi: message: fusion: struct _CONFIG_PAGE_IOC_3: Replace 1-element array with flexible array Date: Thu, 11 Jul 2024 10:28:19 -0700 Message-Id: <20240711172821.123936-5-kees@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240711172432.work.523-kees@kernel.org> References: <20240711172432.work.523-kees@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3164; i=kees@kernel.org; h=from:subject; bh=MnZHveL4bhw7QKqCedPp+xc07Hey0fundjFehsgmf5w=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBmkBY0+IfDHmTrR7F+4Nw6sg6RTWu4dYQ8PC94w LD5eUgElKaJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCZpAWNAAKCRCJcvTf3G3A JgzlD/9CQ9zmCPlZEsJz+MYcZ3brkTlXQxnE/MRIbQRddbmNlIGZqoltkazt7zYCuJtzE2mUfo9 EgjWZxbXflOmH/r0TZUFYfrhDiYIqrA1n2MOGpdjdFfFTtz3bR/9dL2qkPISojtexAEEkXQnjMF /QlwARa6sNlpqVovfsjPFEJHOGpaHI2JBzf3NpTogg85e8hDSvuQx5dSkVUXmR/1YhljWmMSp3w RmYS3o3/mkDBDLQafWFKs7l/9WxZNIwfjq8KeD6diisq9viZEpUN+BFbn0kqS7+xd6zkWa9xlPX XBUTxMoYQm00LRnRo/US3XsItNIZJELxGuBTD/iBM8uSPoV8gYsAUy9BjTEjwB7ezrBJHy/mFzw CHOjg8UrVPIU/GLcZMhrxjPHl82o4hyixCOvQzvguiRvmcmS5raWAqYQUVF3LLwKVIJqg4f23uI ZiQe/jTPpElylJUBckRZidI4aOW6CNiPbnPd+v0ZlcHLBrnwS1bFwZAVu4K9Y3WddgqcCaCR81J c+h4y7gxX98zlGB0yYec/o/w3ZF0m/nRzRl3zYIfgNtU4uTbX4FZY2cdldLydj8UmX0YwPMAcpo gl/csUMfpUi8LkbwUH4dtYpY8tDrY/Xm9BAjz1zBL51NRT2iP5uFvLMBJ7oCQdfMzvbiEXM9MME idSgdPVwgpNgjbQ== X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Replace the deprecated[1] use of a 1-element array in struct _CONFIG_PAGE_IOC_3 with a modern flexible array. Additionally add __counted_by annotation since PhysDisk is only ever accessed via a loops bounded by NumPhysDisks: lsi/mpi_cnfg.h: IOC_3_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 08h */ mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && mptscsih.c: (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: if ((id == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskID) && mptscsih.c: (channel == ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskBus)) { mptscsih.c: rc = ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum; mptscsih.c: for (i = 0; i < ioc->raid_data.pIocPg3->NumPhysDisks; i++) { mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum); mptscsih.c: ioc->raid_data.pIocPg3->PhysDisk[i].PhysDiskNum, No binary differences are present after this conversion. Link: https://github.com/KSPP/linux/issues/79 [1] Signed-off-by: Kees Cook --- Cc: Sathya Prakash Cc: Sreekanth Reddy Cc: Suganath Prabu Subramani Cc: "Gustavo A. R. Silva" Cc: MPT-FusionLinux.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org Cc: linux-hardening@vger.kernel.org --- drivers/message/fusion/lsi/mpi_cnfg.h | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h index 7713c74e515b..bac49c162165 100644 --- a/drivers/message/fusion/lsi/mpi_cnfg.h +++ b/drivers/message/fusion/lsi/mpi_cnfg.h @@ -1056,21 +1056,13 @@ typedef struct _IOC_3_PHYS_DISK } IOC_3_PHYS_DISK, MPI_POINTER PTR_IOC_3_PHYS_DISK, Ioc3PhysDisk_t, MPI_POINTER pIoc3PhysDisk_t; -/* - * Host code (drivers, BIOS, utilities, etc.) should leave this define set to - * one and check Header.PageLength at runtime. - */ -#ifndef MPI_IOC_PAGE_3_PHYSDISK_MAX -#define MPI_IOC_PAGE_3_PHYSDISK_MAX (1) -#endif - typedef struct _CONFIG_PAGE_IOC_3 { CONFIG_PAGE_HEADER Header; /* 00h */ U8 NumPhysDisks; /* 04h */ U8 Reserved1; /* 05h */ U16 Reserved2; /* 06h */ - IOC_3_PHYS_DISK PhysDisk[MPI_IOC_PAGE_3_PHYSDISK_MAX]; /* 08h */ + IOC_3_PHYS_DISK PhysDisk[] __counted_by(NumPhysDisks); /* 08h */ } CONFIG_PAGE_IOC_3, MPI_POINTER PTR_CONFIG_PAGE_IOC_3, IOCPage3_t, MPI_POINTER pIOCPage3_t;