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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2AEAC38141 for ; Sat, 21 Jan 2023 08:03:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229575AbjAUIDh (ORCPT ); Sat, 21 Jan 2023 03:03:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57428 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229578AbjAUIDe (ORCPT ); Sat, 21 Jan 2023 03:03:34 -0500 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 139915925D for ; Sat, 21 Jan 2023 00:03:31 -0800 (PST) Received: by mail-il1-f199.google.com with SMTP id k7-20020a056e02156700b0030f025aeca3so5179596ilu.12 for ; Sat, 21 Jan 2023 00:03:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=9YJrK3JuBtS2QgULoPaUqzJ5BAj9a0fMy2abEiu2YnE=; b=HUMuca18nNorMPrT3+sFsI0RDP7TxgBmIJrv9N6ch+ubogHMEZXLei64pdaUfTL8Nm lKWpFTUhts+im6p4JI6tvfkVD10Muwzz4BJfUP6KzBJVF+0WoSvUZI3S5lsFSt1tTcVZ RH8jb47Js6Zgo0apaE+VuEG3VYwsSFbXN2yO44TO3Fo8cKgaT2XAcoqfmMrs6zCm5ZXB PCMxFbnIfLhAl1UVTm2U5FMHqrc9s4veGBhF4+qFQJqopQVeYqI6Vi1Hk8c8y00YTYsP pilHbKy29LLnPfh9Zb++BrgYgkuu5xmrzjqHCNC/gXvX1FYJa9tNW6NYpP7tLPN+ov8G UqRQ== X-Gm-Message-State: AFqh2kqiRKsyzMqdzKfV5BuLZJlQFt7x739tS03/xeeADMKxwuFcJqkk 0WlyhIFt+WF58DeaHNJ5OZzedKoIT6YmNwi+TpOqdPqLH56A X-Google-Smtp-Source: AMrXdXtPqnQD24z4QHzns98msXfMxweBfuSES5tn2xHrqj/aTn5dDoWGXHrTuSXBwVSqBBsabEwnei4Qg/cuYibJpTSGNeCzVJQr MIME-Version: 1.0 X-Received: by 2002:a05:6638:41a4:b0:38a:3770:2fa2 with SMTP id az36-20020a05663841a400b0038a37702fa2mr1739324jab.208.1674288210933; Sat, 21 Jan 2023 00:03:30 -0800 (PST) Date: Sat, 21 Jan 2023 00:03:30 -0800 In-Reply-To: <0000000000003a5c4905ef1044d6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000107e1b05f2c19aa5@google.com> Subject: Re: [syzbot] WARNING in get_vaddr_frames From: syzbot To: hverkuil@xs4all.nl, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, m.szyprowski@samsung.com, mchehab@kernel.org, syzkaller-bugs@googlegroups.com, tfiga@chromium.org, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 6647e76ab623b2b3fb2efe03a86e9c9046c52c33 Author: Linus Torvalds Date: Thu Dec 1 00:10:52 2022 +0000 v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=115987c5480000 start commit: e4cf7c25bae5 Merge tag 'kbuild-fixes-v6.2' of git://git.ke.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=135987c5480000 console output: https://syzkaller.appspot.com/x/log.txt?x=155987c5480000 kernel config: https://syzkaller.appspot.com/x/.config?x=2651619a26b4d687 dashboard link: https://syzkaller.appspot.com/bug?extid=59a71007ccac79e8bb69 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ee1934480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=101b997c480000 Reported-by: syzbot+59a71007ccac79e8bb69@syzkaller.appspotmail.com Fixes: 6647e76ab623 ("v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails") For information about bisection process see: https://goo.gl/tpsmEJ#bisection