From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1732752-1527155758-2-2402222476535438955 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, MAILING_LIST_MULTI -1, RCVD_IN_DNSWL_HI -5, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=fm2; t= 1527155757; b=L/husWY2uHl5McIB0TJf1R4rS+a2dWuIEPgRIYF60KzQiDL0ig 4qhTSUQWdoIImbvuXN26KSiNIfCe0D6tp8BQRxYj5RigMifCPBRfcn4CBNeYKmHA fEyMEteQbNhc6Z7+r6IGqiOdQt45N955s7Dtq92NwXN+zqBueDzy/bO0BBTCRkCV PDVDbCeN69e+zBGzM6Z1h9kJGIM96fbHH3NcsqmzyoSNemQi6jn+EublUDW+ZqMU 2FtEnrZaQEAB5yb+vgHnIN3HFImQKrsYg29pZkRLe0D6k+AJem952lJwTKmSj3gU j6LmFyg796jGT+G9NESj5TvI5xl4tqZr4wZA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=fm2; t=1527155757; bh=Hou3ddALr4QQVeYo3CyBvaeySWC2Zf gSu5wcy+1d++4=; b=S4j7+pbYTdP8G7B3j11usrC9xFGIGdW2Hq5y66R9kqhtzK e766ymEIb0nKshs5+9w0xuEZ78iyKVvQBrC8IViun7buSTOg4/AKKZwLczfSdf9/ iAd66e6alkdDgaY6dBu7CXbyBVq139o+D8up6z7ZTSbSnz/YYFMHS0+IEEtyxjQY dOA1TBT7FD4yZsiQ37vw3MeNmm9FY2fWgwpyAKP/gS5bUiMzFfZfmGJqVshiFlYG jHv/5LHyp2VKRKl1YaYKYnKrT5MzuoS6i7FwSPKnJqByz210puQvdUzK/yZuKpt3 6su5tM30kKEVh3qXNzY5lBsYITcrkCWpk2EP3OHw== ARC-Authentication-Results: i=1; mx6.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=kernel.org header.i=@kernel.org header.b=d95VygIX x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=default; dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx6.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=kernel.org header.i=@kernel.org header.b=d95VygIX x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=default; dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-cm=none score=0; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfFhr9KQgxIf1LyyJ1OVmYa+4FNDVkL4AupdMC73eaGakxomEsNJfcptLBH0PXinvEoOF8gDQv5O9+Sk5AKmitGFQlytIihZN4uwfQiaUSIXm9//Ot4An Mfynsq0f7cGXt1lo83hVeT6vTfIm7paAB/GNltPFZxcarl21iRlndVbTPWZnNDPY82Jlds2EiOfLJjlVL8ymNURLvPZYF8vjz3BQk5EKlm9giZv+YRfBuc6b X-CM-Analysis: v=2.3 cv=FKU1Odgs c=1 sm=1 tr=0 a=UK1r566ZdBxH71SXbqIOeA==:117 a=UK1r566ZdBxH71SXbqIOeA==:17 a=IkcTkHD0fZMA:10 a=VUJBJC2UJ8kA:10 a=yPCof4ZbAAAA:8 a=yMhMjlubAAAA:8 a=ag1SF4gXAAAA:8 a=x3GXP8Dy4zAY1LmwQykA:9 a=QEXdDO2ut3YA:10 a=Yupwre4RP9_Eg_Bd0iYG:22 X-ME-CMScore: 0 X-ME-CMCategory: none Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030214AbeEXJzy (ORCPT ); Thu, 24 May 2018 05:55:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:35880 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030206AbeEXJzv (ORCPT ); Thu, 24 May 2018 05:55:51 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Johannes Thumshirn , Matthew Wilcox , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.14 103/165] scsi: sym53c8xx_2: iterator underflow in sym_getsync() Date: Thu, 24 May 2018 11:38:29 +0200 Message-Id: <20180524093626.183969575@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180524093621.979359379@linuxfoundation.org> References: <20180524093621.979359379@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit e6f791d95313c85f3dd4a26141e28e50ae9aa0ae ] We wanted to exit the loop with "div" set to zero, but instead, if we don't hit the break then "div" is -1 when we finish the loop. It leads to an array underflow a few lines later. Signed-off-by: Dan Carpenter Reviewed-by: Johannes Thumshirn Acked-by: Matthew Wilcox Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/sym53c8xx_2/sym_hipd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/scsi/sym53c8xx_2/sym_hipd.c +++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c @@ -536,7 +536,7 @@ sym_getsync(struct sym_hcb *np, u_char d * Look for the greatest clock divisor that allows an * input speed faster than the period. */ - while (div-- > 0) + while (--div > 0) if (kpc >= (div_10M[div] << 2)) break; /*