From patchwork Fri May 1 13:22:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 226645 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 55B95C47254 for ; Fri, 1 May 2020 13:37:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2AC3E24953 for ; Fri, 1 May 2020 13:37:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588340241; bh=QpfX3JTibHDMAjB4NRzfy85HK0q7fBbBFotvXBCEJJ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=1VbiqrVTCH+qBBrbTZzma4XTj33kkMx5ukw3tu+cn/rNiW12NUVVxxGfQmnmk+3VG 3I4OpFHOYvZYlnRY7XI01M44ROx6w0tHpSmxjGOCBX9+gNzAUHf94N+FUDUNiNlDub xwZWFM3p8tEQwBE6qIPHZwnePuh0tMQnuLMEzfeo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730958AbgEANhS (ORCPT ); Fri, 1 May 2020 09:37:18 -0400 Received: from mail.kernel.org ([198.145.29.99]:36218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730954AbgEANhR (ORCPT ); Fri, 1 May 2020 09:37:17 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E281E24954; Fri, 1 May 2020 13:37:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588340237; bh=QpfX3JTibHDMAjB4NRzfy85HK0q7fBbBFotvXBCEJJ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AI8TNOzvHV6UoO3K1jVYcEIO57X41ILK9yM/LFZtM4YPSTOsde3NsevC1bkM6JuqK QfujoN63W14Xur+eCsBsWhvrHRZaXV/wmkCFBNi0Ol2JyDV+B+LeZfLE5slPvjm94R 54fukH/0niAQwmaFqneqTKijuaR65A+YGJ3wR4tI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bodo Stroesser , Mike Christie , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.19 33/46] scsi: target: fix PR IN / READ FULL STATUS for FC Date: Fri, 1 May 2020 15:22:58 +0200 Message-Id: <20200501131510.504703079@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200501131457.023036302@linuxfoundation.org> References: <20200501131457.023036302@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 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 10fae26b44add..939c6212d2ac5 100644 --- a/drivers/target/target_core_fabric_lib.c +++ b/drivers/target/target_core_fabric_lib.c @@ -76,7 +76,7 @@ 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;