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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 0A82FC10F05 for ; Wed, 20 Mar 2019 19:40:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D27CF21873 for ; Wed, 20 Mar 2019 19:40:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726987AbfCTTkB (ORCPT ); Wed, 20 Mar 2019 15:40:01 -0400 Received: from mail-it1-f199.google.com ([209.85.166.199]:59516 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726115AbfCTTkB (ORCPT ); Wed, 20 Mar 2019 15:40:01 -0400 Received: by mail-it1-f199.google.com with SMTP id q192so365256itb.9 for ; Wed, 20 Mar 2019 12:40:01 -0700 (PDT) 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=2I+f565Y1NtdA0KH4uBTOc2mgcFoDofIvczZasaZa7Q=; b=QXGzY1Ewfdw6W0/4QZmkYF9m3Mvi4+hTIHYNGn+J3C7tmhl/sPr6kPXOdv9o+m13+Z gfs0zDokTyXOzZHkUwl8drgt4BUHimOmOOWGJGp09CSVwEE2JIAgQhQWWswrtdi/UcNq T6SB9e45L7nVWVgCN1FIeh5DEmPFZ94EhjvjzZZT9sscxXf6GgonpfSccZLWjry4/8FK W31SDoBogzQ08VyGN7Yy9xK5F7KAfCj+Jtv6dpnAEp7yyqKerb+OeSq/f/LZSrp9WTBs JUc1HrV4/kcTQiU1RA81lE6Wg6rOrPSM5j0wMiRntUXx3EF4OgHcH668eZ67Q1gXoOa+ yHzw== X-Gm-Message-State: APjAAAU/Ubmh0EgghQ5JT2z+J154v9Ws6F8geBhRQV3CuJNHhQzybw7s lvfHwnjWBjtNE2AvRloQN1JqnYSOMXq97stxQpRCj7WEQWi9 X-Google-Smtp-Source: APXvYqzzFZnRA8b0m9Te9gHW0nkqzNpsHZP7/nMQCDcHH9V6x2GsV1Z5lv3wQx++gJJXgI1WUYYF2J549JXLxJnAMhLWQeZbWbZv MIME-Version: 1.0 X-Received: by 2002:a24:d603:: with SMTP id o3mr858917itg.17.1553110800589; Wed, 20 Mar 2019 12:40:00 -0700 (PDT) Date: Wed, 20 Mar 2019 12:40:00 -0700 In-Reply-To: <0000000000005943f3057acf6a1e@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000090e7eb05848bc9b7@google.com> Subject: Re: possible deadlock in v4l2_release From: syzbot To: ezequiel@collabora.com, hans.verkuil@cisco.com, hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab+samsung@kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com, sque@chromium.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 757fdb51c14fda221ccb6999a865f7f895c79750 Author: Hans Verkuil Date: Mon May 21 08:54:59 2018 +0000 media: vivid: add request support bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=145c3a6d200000 start commit: 757fdb51 media: vivid: add request support git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=165c3a6d200000 console output: https://syzkaller.appspot.com/x/log.txt?x=125c3a6d200000 kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 dashboard link: https://syzkaller.appspot.com/bug?extid=ea05c832a73d0615bf33 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b8e6a3400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14e73e2b400000 Reported-by: syzbot+ea05c832a73d0615bf33@syzkaller.appspotmail.com Fixes: 757fdb51 ("media: vivid: add request support")