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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 348FBC5DF60 for ; Thu, 7 Nov 2019 13:43:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15998207FA for ; Thu, 7 Nov 2019 13:43:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389514AbfKGNnX (ORCPT ); Thu, 7 Nov 2019 08:43:23 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:42460 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389026AbfKGNmH (ORCPT ); Thu, 7 Nov 2019 08:42:07 -0500 Received: by mail-io1-f69.google.com with SMTP id w1so1863752ioj.9 for ; Thu, 07 Nov 2019 05:42:07 -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=WTUaaUrmKVHorKvakIXCTTRuudk2YAQScGxgofVTkUI=; b=ZU4tT6GIxcQL15N+n0wuf/yI5s9p6xzlOzhB48aWJPPrR91OuoZZ7dY77K4bW0kJqS pWH/PzhDlY1zlrpSkxXdk0aKzwE4J/41k5Ei4P5axq5PvYHtiYGJSBSjlyE07ZB0H8Q/ IaebePFN4yJsyS2R4uVyoAmGQjLFcC9EjNtE9C+AXE00nIihEzx6hlKT/ZHEPdxnCPH7 e4r265L1c2tDa6pzH9/28q/W3dPhbWde0A8Abs9yyPdB/fc7i773P93b/45vIO6/PPTZ 5T6T7RQDzs8+99joiX/bzUisxAxdJ42wlZLf5Vs+WKGytWJFPCwJxJWRxi6BNnMi8bGu H53w== X-Gm-Message-State: APjAAAVr3zvLCdtzq9axPXr0z9b4teULLaRnARzQgEIndgoCzP5RPUrg hXtsscViRR3WrP6MVYYSSSSuD35JAALZgkG6yOAIaAR2xfO/ X-Google-Smtp-Source: APXvYqzOTbKLWUtJfV+eTnZAGIHCOihW1P53mf2MSnAtW+U2zup71yFaexRFHdR5rbJrPPIrMXY88woVwchxPC8nR165HI7yQ6Is MIME-Version: 1.0 X-Received: by 2002:a5d:8c94:: with SMTP id g20mr3746490ion.13.1573134126988; Thu, 07 Nov 2019 05:42:06 -0800 (PST) Date: Thu, 07 Nov 2019 05:42:06 -0800 In-Reply-To: <000000000000aa8703057a7ea0bb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d2c94e0596c1d47b@google.com> Subject: Re: WARNING in dma_buf_vunmap From: syzbot To: andy@greyhouse.net, davem@davemloft.net, dri-devel@lists.freedesktop.org, gregkh@linuxfoundation.org, hverkuil-cisco@xs4all.nl, j.vosburgh@gmail.com, kyungmin.park@samsung.com, linaro-mm-sig-owner@lists.linaro.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, m.szyprowski@samsung.com, maheshb@google.com, mchehab+samsung@kernel.org, mchehab@kernel.org, netdev@vger.kernel.org, pawel@osciak.com, sumit.semwal@linaro.org, syzkaller-bugs@googlegroups.com, tfiga@chromium.org, vfalico@gmail.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot suspects this bug was fixed by commit: commit 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 Author: Hans Verkuil Date: Thu Nov 8 12:23:37 2018 +0000 media: vb2: check memory model for VIDIOC_CREATE_BUFS bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=116af11c600000 start commit: d41217aa Merge tag 'pci-v4.20-fixes-1' of git://git.kernel.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=4a0a89f12ca9b0f5 dashboard link: https://syzkaller.appspot.com/bug?extid=a9317fe7ad261fc76b88 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f7b6f5400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=105a2783400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: media: vb2: check memory model for VIDIOC_CREATE_BUFS For information about bisection process see: https://goo.gl/tpsmEJ#bisection