From patchwork Thu Jun 12 06:02:10 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 895894 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 26E0E153598 for ; Thu, 12 Jun 2025 06:03:58 +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=1749708239; cv=none; b=YSldp6V4Ctbfp5B29PEmdWPVaPlzJunUw36TRuSdPV+X8/T7Q+yttd+tKEwfVmm2H3CZHw74EKVcw3/sBBruyAUAoHQ2P7YGw9hCb9Bs1f8qRNso4Fum1/rZXT61Kn1ukwbtZ9ZWkcro+yvoQCF4TAgBa//GwOEXNqhRg7g0Og0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749708239; c=relaxed/simple; bh=Qkk9fJUpwJdHjR+9Wipu+d2XRSMaJTKkFESl97m/QX8=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FVgXMEtX2y+y7hbckx/Xm3EzOxMdbh/g8t2cs/p+6kJGAQChm6EA1jqbPwyt4yrqPX0CW9w9koV5qRklNLJqzD37LKx1Pv4TXlERMRXG3iYYB1I6Mw9hb70iy19CPzbmgI4SkivDsi7WbGY+r2841nl+o4LGnuiREgcSxJNsK4s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FRTstZNS; 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="FRTstZNS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44860C4CEEB; Thu, 12 Jun 2025 06:03:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749708238; bh=Qkk9fJUpwJdHjR+9Wipu+d2XRSMaJTKkFESl97m/QX8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=FRTstZNS1+cjzJlNWRMBTe1nbNHiUocNUOB7igeVkqJ+6BJR+lLhVpub1nL66E4z1 KirinuY/3G3cL6MErDDM6r0+xCAZL7oBcS3/uk2vLLJyjesqKtEtXyYe6eix5cPJmy nR4f9uFu7FF5Nodix4FGkBRYFpbXsEE20dc8IQnBOipv9sUzmSTTHeNnPPPNnmXdV9 0kqvlmEbcf/o0S4i78frCvCEo7o1HQJjPUHOk5v5SzWCeQaoJ+yY96YT9OKQPT8Hh0 HdsmOeWqsPhQ5fDcma+n2VU4Ij8nE+MT0MEeGOb0piLONGxedmkFQBdVHrbGP8KbHZ rJzGUZJSqehyg== From: Damien Le Moal To: "Martin K . Petersen" , linux-scsi@vger.kernel.org Subject: [PATCH v3 1/2] scsi: sd: Prevent logical_to_bytes() from returning overflowed values Date: Thu, 12 Jun 2025 15:02:10 +0900 Message-ID: <20250612060211.1970933-2-dlemoal@kernel.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250612060211.1970933-1-dlemoal@kernel.org> References: <20250612060211.1970933-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Make sure that logical_to_bytes() does not return an overflowed value by changing its return type from unsigned int (32-bits) to size_t (64-bits). Signed-off-by: Damien Le Moal --- drivers/scsi/sd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 36382eca941c..3803eb8cb532 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -213,7 +213,7 @@ static inline sector_t logical_to_sectors(struct scsi_device *sdev, sector_t blo return blocks << (ilog2(sdev->sector_size) - 9); } -static inline unsigned int logical_to_bytes(struct scsi_device *sdev, sector_t blocks) +static inline size_t logical_to_bytes(struct scsi_device *sdev, sector_t blocks) { return blocks * sdev->sector_size; }