From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757228AbdDQBVf (ORCPT ); Sun, 16 Apr 2017 21:21:35 -0400 Received: from mail-pf0-f195.google.com ([209.85.192.195]:34464 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757056AbdDQBVc (ORCPT ); Sun, 16 Apr 2017 21:21:32 -0400 Date: Mon, 17 Apr 2017 10:21:34 +0900 From: Sergey Senozhatsky To: Minchan Kim Cc: Andrew Morton , linux-kernel@vger.kernel.org, Sergey Senozhatsky , kernel-team@lge.com, stable@vger.kernel.org Subject: Re: [PATCH 1/3] zram: fix operator precedence to get offset Message-ID: <20170417012134.GB518@jagdpanzerIV.localdomain> References: <1492042622-12074-1-git-send-email-minchan@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1492042622-12074-1-git-send-email-minchan@kernel.org> User-Agent: Mutt/1.8.1 (2017-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On (04/13/17 09:17), Minchan Kim wrote: > Date: Thu, 13 Apr 2017 09:17:00 +0900 > From: Minchan Kim > To: Andrew Morton > CC: linux-kernel@vger.kernel.org, Sergey Senozhatsky > , kernel-team@lge.com, Minchan Kim > , stable@vger.kernel.org > Subject: [PATCH 1/3] zram: fix operator precedence to get offset > X-Mailer: git-send-email 2.7.4 > > In zram_rw_page, the logic to get offset is wrong by operator precedence > (i.e., "<<" is higher than "&"). With wrong offset, zram can corrupt the > user's data. This patch fixes it. > > Fixes: 8c7f01025 ("zram: implement rw_page operation of zram") > Cc: stable@vger.kernel.org > Signed-off-by: Minchan Kim Reviewed-by: Sergey Senozhatsky