Received: by 2002:a17:90a:9307:0:0:0:0 with SMTP id p7csp7935471pjo; Fri, 6 Mar 2020 14:35:43 -0800 (PST) X-Google-Smtp-Source: ADFU+vu2EsD6B4z8lS7EOQYFrIg426zAvJYluvMokgcR02bhsZnzqjNMhZLwnUyr31RQX1yKixot X-Received: by 2002:a9d:6c8e:: with SMTP id c14mr4074456otr.331.1583534143629; Fri, 06 Mar 2020 14:35:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1583534143; cv=none; d=google.com; s=arc-20160816; b=SJxNvn3q2EIzv6RBgfqSA16aaiH+B06QGq3ZgsoxiWtsZ5sarSSFO2Bkeq1oEpxZJ3 hSouul7CVFkfwg7xMg/L8zxlRp/9msJFi3CxgArPyuIS9v8blR2K0lD4yiqwrFO+2qlP cQvIPIJVc77+mnDjB2al7C8Vk6w7FvobbRYUBGZEfWL3Fm3gWBGBX4Udn5VQkcLBCuJb hM/1HLFNZv+lo9kRJH26/qHIgXHw56/7tje6gDqxYnkak+kon7k2aEQ1OpP8fcJM1Dxa rfuJ9J7lOOkIyROf0nHi2ySYCbXeM0+30XB+IPLfEX6gvStpo1JdrEpgO8B09J3mJfV4 xVjw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:from:subject:message-id:in-reply-to :date:mime-version; bh=KjWtQPcKIxIvEZPVuieJJ01SWtPnm/mBaTh4nN8Yq4A=; b=kyUcRX+GOxczNfrt2T6WS6v3W0gguDpEb9DqbT7Zq+fT1LwK9e2zH9YdE9SVkA4BPL tMyatvS3hHeYID99NXiTtf22BrGkMyKm5aTfK1rnhHJQy93/XpzOoW7ABd6LRF5N3U9X yJDGDrnROuTAMBb/18UgZqpgcKsP1wN49aCVvSeQbSy3iMKPgNIi5Nvews+8cnaKG9jK 5jGZqDMUMhEsR2bNlpTDWItYpmVilQj1kWCUy4kM5KfffvnNinxsgkzYIK9uwB6xuBk1 Sr3ELt0/JxwAXplouDEcmVpCsqabnArNdfi8zl0Dfjt3K/evkbQ6eyY4aMiZdZlreINZ ihfg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u4si347700oic.115.2020.03.06.14.35.31; Fri, 06 Mar 2020 14:35:43 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726988AbgCFWfE (ORCPT + 99 others); Fri, 6 Mar 2020 17:35:04 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:35709 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726194AbgCFWfE (ORCPT ); Fri, 6 Mar 2020 17:35:04 -0500 Received: by mail-io1-f71.google.com with SMTP id w16so2481423iot.2 for ; Fri, 06 Mar 2020 14:35:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=KjWtQPcKIxIvEZPVuieJJ01SWtPnm/mBaTh4nN8Yq4A=; b=tLt9tlMP/lfD2YT/IJGrPjMXcGGo0WObH8hSvi7pLss1fRy6vq0BFdNQKqLdDi+H/O UEHSDVvVSW6w8Qde3uCES6BpqjSIdijyaJ+pbmXYw92/Y4xYV1QTgopD73vTrgUXMgxH H+e0d0KJadKRfBHLZeD4S5LkDNLsjf56nQfQLPujRoChqMpaW9GvYDe8ZVM3VdGueFGi aI2lrmCU5stVs0OYypczTmOV7hZEurUvlMdFhBQmoPbtDhaI7ULbS/jvSmkfFWoJXLm3 FM9GQ5X7c6utFb3QjPgBECAufAMKas8zEl4PNWyLxJKZFci2IXj/4GfOvUVhqp+qyLS0 jX9w== X-Gm-Message-State: ANhLgQ2Ne8tjIJEL6U5V/EzkfJC5/zAgTx0UuEPxq/TKrtJWZMQNah5z kgUXRmb8OzUsqCpNMjRTitSdXAQYPnvMf1WJTTU21iRkvr76 MIME-Version: 1.0 X-Received: by 2002:a6b:5a06:: with SMTP id o6mr4907893iob.54.1583534102612; Fri, 06 Mar 2020 14:35:02 -0800 (PST) Date: Fri, 06 Mar 2020 14:35:02 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ad0f2c05a0374382@google.com> Subject: Re: WARNING: bad unlock balance in ovl_llseek From: syzbot To: amir73il@gmail.com, dvyukov@google.com, linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, miklos@szeredi.hu, mszeredi@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+66a9752fa927f745385e@syzkaller.appspotmail.com Tested on: commit: 13944050 ovl: fix lock in ovl_llseek() git tree: https://github.com/amir73il/linux.git ovl-fixes kernel config: https://syzkaller.appspot.com/x/.config?x=31018567b8f0fc70 dashboard link: https://syzkaller.appspot.com/bug?extid=66a9752fa927f745385e compiler: gcc (GCC) 9.0.0 20181231 (experimental) Note: testing is done by a robot and is best-effort only.