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 1B593C433EF for ; Fri, 10 Jun 2022 07:10:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240340AbiFJHKd (ORCPT ); Fri, 10 Jun 2022 03:10:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241539AbiFJHKW (ORCPT ); Fri, 10 Jun 2022 03:10:22 -0400 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3E983238AC for ; Fri, 10 Jun 2022 00:10:19 -0700 (PDT) Received: by mail-il1-f200.google.com with SMTP id x5-20020a923005000000b002d1a91c4d13so19145823ile.4 for ; Fri, 10 Jun 2022 00:10:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=1s4eQtwNPIFPmijyqkQxRHOcZ3UNMSKoKcH4SMx+dwU=; b=ckoDxoBFrAcv1NIp9DN9W3A+9VvV0r98D8o++9YGQcofdJJsj1sjismQkVT/mWdSUz 5Dqgdy/+v+VATIyQ1ol2vzrRtaZsgOTI6gUS9NSS0lxpJopoLVyuTowbNuZKwtMwEzJf nXwp5TirC5CvE/PNpgtclvfTVwIfUMvvKF7wyG+C2ugzZWKK7UAv4yRGozNe0WdZqXhm w5oi3zuXPZfzqm08OZVPEI5VWGgGcIoCBVQAITMJ9OJzHv4Doi/mFs5jH/jyMBvFCvaq Mr8fmBIJaFSc1UXEQ0bOfIFJnUfklXFrhtBXXXgPZg49Rm4jnR2dIzvxiH2ovZlWfTZC FO8Q== X-Gm-Message-State: AOAM530g1/XBQQkpcfUs+65g5rJePxyHOhM93pxMKkbsoFsnftZ1Yrbr 27BJ3YFV1G8Txw7wxiYPA1ZRKbfkSR/k1R5+Z1FcRCpVvZrX X-Google-Smtp-Source: ABdhPJy5bafZuLIonGH4GUOrP3ruXh8F7X7gdTY46sCg3pH3RDVeUt5B+QRwB61fcauuyJ3F6YRJ4lORT1xiAPOmM/UOYzheuU2c MIME-Version: 1.0 X-Received: by 2002:a05:6638:3892:b0:331:e9b0:80f2 with SMTP id b18-20020a056638389200b00331e9b080f2mr6982887jav.133.1654845019061; Fri, 10 Jun 2022 00:10:19 -0700 (PDT) Date: Fri, 10 Jun 2022 00:10:19 -0700 In-Reply-To: <0000000000003ce9d105e0db53c8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000085068105e112a117@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in copy_page_from_iter_atomic (2) From: syzbot To: akpm@linux-foundation.org, clm@fb.com, dsterba@suse.com, hch@lst.de, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot has bisected this issue to: commit 4cd4aed63125ccd4efc35162627827491c2a7be7 Author: Christoph Hellwig Date: Fri May 27 08:43:20 2022 +0000 btrfs: fold repair_io_failure into btrfs_repair_eb_io_failure bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1332525ff00000 start commit: ff539ac73ea5 Add linux-next specific files for 20220609 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=10b2525ff00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1732525ff00000 kernel config: https://syzkaller.appspot.com/x/.config?x=a5002042f00a8bce dashboard link: https://syzkaller.appspot.com/bug?extid=d2dd123304b4ae59f1bd syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d6d7cff00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1113b2bff00000 Reported-by: syzbot+d2dd123304b4ae59f1bd@syzkaller.appspotmail.com Fixes: 4cd4aed63125 ("btrfs: fold repair_io_failure into btrfs_repair_eb_io_failure") For information about bisection process see: https://goo.gl/tpsmEJ#bisection