From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E53B3C55191 for ; Fri, 24 Apr 2020 12:25:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCB7220767 for ; Fri, 24 Apr 2020 12:25:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587731157; bh=oN4xXc//JXVyLYe37q429CpdJ1zd5XafytMl0uRgsEU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=L0juxwRLtRYewGkCG83+DEwctef7NxsZ2Wojwcs94Pltvrr36gaskV7HGhFqeRSMe FPcM6RZd6Ug4ggNor+MnBIXTXYe7utltryEHD96zC8lu0bNdXK409SjoINPCRtBOZC hLMBIIYCMz3V6y2kWhOftbPH8TB+DItXYe/ksLtA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727866AbgDXMZo (ORCPT ); Fri, 24 Apr 2020 08:25:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:56196 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728632AbgDXMZI (ORCPT ); Fri, 24 Apr 2020 08:25:08 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BC7DB21707; Fri, 24 Apr 2020 12:25:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587731107; bh=oN4xXc//JXVyLYe37q429CpdJ1zd5XafytMl0uRgsEU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KZCojek3xu49ET4CkKm1LfEzUj1S41hoOMXPpl338Bj19i4pusAQ57oXt5qoA4Z8u h6GqSlwqDntd/XjjYc8frkbmUO1tYhxmguW8rbmg5kbb91cTYtGlVaQUlW54R/Olwt VzMr1eOpJkmhu5KzCYCI3ZdlF3KQtVtHlRrNQoCE= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bodo Stroesser , Mike Christie , "Martin K . Petersen" , Sasha Levin , linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 3/8] scsi: target: fix PR IN / READ FULL STATUS for FC Date: Fri, 24 Apr 2020 08:24:58 -0400 Message-Id: <20200424122503.11046-3-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200424122503.11046-1-sashal@kernel.org> References: <20200424122503.11046-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bodo Stroesser [ Upstream commit 8fed04eb79a74cbf471dfaa755900a51b37273ab ] Creation of the response to READ FULL STATUS fails for FC based reservations. Reason is the too high loop limit (< 24) in fc_get_pr_transport_id(). The string representation of FC WWPN is 23 chars long only ("11:22:33:44:55:66:77:88"). So when i is 23, the loop body is executed a last time for the ending '\0' of the string and thus hex2bin() reports an error. Link: https://lore.kernel.org/r/20200408132610.14623-3-bstroesser@ts.fujitsu.com Signed-off-by: Bodo Stroesser Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/target/target_core_fabric_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_fabric_lib.c b/drivers/target/target_core_fabric_lib.c index 6e75095af6818..2ecb2f7042a13 100644 --- a/drivers/target/target_core_fabric_lib.c +++ b/drivers/target/target_core_fabric_lib.c @@ -75,7 +75,7 @@ static int fc_get_pr_transport_id( * encoded TransportID. */ ptr = &se_nacl->initiatorname[0]; - for (i = 0; i < 24; ) { + for (i = 0; i < 23; ) { if (!strncmp(&ptr[i], ":", 1)) { i++; continue; -- 2.20.1