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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,URIBL_BLOCKED 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 31EC9C10F0E for ; Tue, 9 Apr 2019 21:18:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 058FD20833 for ; Tue, 9 Apr 2019 21:18:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726690AbfDIVSB (ORCPT ); Tue, 9 Apr 2019 17:18:01 -0400 Received: from mail-it1-f197.google.com ([209.85.166.197]:39636 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726515AbfDIVSB (ORCPT ); Tue, 9 Apr 2019 17:18:01 -0400 Received: by mail-it1-f197.google.com with SMTP id z125so252408itf.4 for ; Tue, 09 Apr 2019 14:18:00 -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=GcWNpwOMRmzRIHtUaNeEDmKc6+Sx6+2uSa1vrLVLg2Y=; b=L5SjgWUXx/r20wQ2d1Zs7VYNBm0LSTsOYWPDbLLFV1uDrHbFn9svBfucmuODyInMI9 PcCmKRm+bXtjEtgBPiu4Ycrh5jRF02f1VVM9R56/raP+3/U5Hqxwlm/i5+YviKTU/vEF ZT97jWGgYBcUQ54yoLzTUSU8JsVK1e10liH75q6x9J4esRpxjovI/JZcAcnV2Yo283E3 +5+Iu2+rNr4FnJqMiCnMxPItobaycGklU3cnAQXup4XbMzZY8fSEsX/9F6/3pSjdntQb /cnoId4ZlW5Voc2vMKg5bxHtTEYM4azJTg5v1uDGT4++9CAJMgaHneO2Q2dxBNUmaloR llEg== X-Gm-Message-State: APjAAAXbzLS7z46uqfSlqBwoNDdGgQwuSJQQk4k3IBk2RSedyH1I57N9 VjojSB1XAHofYO0e4AMrine5hwEZQ7Dlr9Bf293euLgImSXq X-Google-Smtp-Source: APXvYqzfUzNHgw11JRqNeHgonddxf/iovSkX6tWyo8AkaBFHSEOK0ur30I95250S7CJno4/AU9i5jyCxP04t/bmR5FVx4F56T9xL MIME-Version: 1.0 X-Received: by 2002:a6b:e30e:: with SMTP id u14mr2859524ioc.13.1554844680361; Tue, 09 Apr 2019 14:18:00 -0700 (PDT) Date: Tue, 09 Apr 2019 14:18:00 -0700 In-Reply-To: <00000000000091818d05795d0f2f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000da9f1505861f7cfb@google.com> Subject: Re: KASAN: use-after-free Read in __vb2_perform_fileio From: syzbot To: hans.verkuil@cisco.com, helen.koike@collabora.com, hverkuil@xs4all.nl, kyungmin.park@samsung.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, m.szyprowski@samsung.com, mchehab@kernel.org, mchehab@s-opensource.com, mhjungk@gmail.com, pawel@osciak.com, syzkaller-bugs@googlegroups.com 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 f2fe89061d79706eca5c47e4efdc09bbc171e74a Author: Helen Koike Date: Fri Apr 7 17:55:19 2017 +0000 [media] vimc: Virtual Media Controller core, capture and sensor bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15fbb7a7200000 start commit: 38e7571c Merge tag 'io_uring-2019-03-06' of git://git.kern.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=17fbb7a7200000 console output: https://syzkaller.appspot.com/x/log.txt?x=13fbb7a7200000 kernel config: https://syzkaller.appspot.com/x/.config?x=1c9125b2c20e6dd4 dashboard link: https://syzkaller.appspot.com/bug?extid=4180ff9ca6810b06c1e9 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101eda5f200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10c465db200000 Reported-by: syzbot+4180ff9ca6810b06c1e9@syzkaller.appspotmail.com Fixes: f2fe89061d79 ("[media] vimc: Virtual Media Controller core, capture and sensor") For information about bisection process see: https://goo.gl/tpsmEJ#bisection