From patchwork Mon Mar 7 11:17:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UGV0ZXIgV2FuZyAo546L5L+h5Y+LKQ==?= X-Patchwork-Id: 549125 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 5BBFAC433F5 for ; Mon, 7 Mar 2022 11:30:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242111AbiCGLbM (ORCPT ); Mon, 7 Mar 2022 06:31:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242085AbiCGLbC (ORCPT ); Mon, 7 Mar 2022 06:31:02 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1241028E1C for ; Mon, 7 Mar 2022 03:18:44 -0800 (PST) X-UUID: b4b65282214a439aad2746082a62a926-20220307 X-UUID: b4b65282214a439aad2746082a62a926-20220307 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 314915228; Mon, 07 Mar 2022 19:18:39 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Mon, 7 Mar 2022 19:18:38 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 7 Mar 2022 19:18:38 +0800 From: To: , , , , , CC: , , , , , , , , , , , , Subject: [PATCH v1] scsi: ufs: scsi_get_lba error fix by check cmd opcode Date: Mon, 7 Mar 2022 19:17:52 +0800 Message-ID: <20220307111752.10465-1-peter.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Peter Wang When ufs init without scmd->device->sector_size set, scsi_get_lba will get a wrong shift number and ubsan error. shift exponent 4294967286 is too large for 64-bit type 'sector_t' (aka 'unsigned long long') Call scsi_get_lba only when opcode is READ_10/WRITE_10/UNMAP. Signed-off-by: Peter Wang Reviewed-by: Bart Van Assche --- drivers/scsi/ufs/ufshcd.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9349557b8a01..3c4caee8fb93 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -367,7 +367,7 @@ static void ufshcd_add_uic_command_trace(struct ufs_hba *hba, static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, enum ufs_trace_str_t str_t) { - u64 lba; + u64 lba = 0; u8 opcode = 0, group_id = 0; u32 intr, doorbell; struct ufshcd_lrb *lrbp = &hba->lrb[tag]; @@ -384,7 +384,6 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, return; opcode = cmd->cmnd[0]; - lba = scsi_get_lba(cmd); if (opcode == READ_10 || opcode == WRITE_10) { /* @@ -392,6 +391,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, */ transfer_len = be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len); + lba = scsi_get_lba(cmd); if (opcode == WRITE_10) group_id = lrbp->cmd->cmnd[6]; } else if (opcode == UNMAP) { @@ -399,6 +399,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag, * The number of Bytes to be unmapped beginning with the lba. */ transfer_len = blk_rq_bytes(rq); + lba = scsi_get_lba(cmd); } intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS);