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 BFDDACCA479 for ; Sat, 25 Jun 2022 13:29:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233106AbiFYN3L (ORCPT ); Sat, 25 Jun 2022 09:29:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233096AbiFYN3J (ORCPT ); Sat, 25 Jun 2022 09:29:09 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0892CE031 for ; Sat, 25 Jun 2022 06:29:08 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id g9-20020a056e020d0900b002d958b2a86dso3356781ilj.14 for ; Sat, 25 Jun 2022 06:29:07 -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=x+Epx1coOg/vJnEueBwxobePEmc4y9ljKo+ccErekWo=; b=iW/z44Wm+smZfJk2bpWJgUSViU2eom9WKrJou1JxszuYMtQj8wDkjrLxuSw673kQCH RWQGI9UqKfrqDv6DHNOb7tccal1eWnxeXT8K2VKLxljfAPLhoCaoZ5pBq8ok6tvjaHPJ 3Zof2i4PAN9ANiiuTQzFKnBVXXjQ45S7jxMuwX0pBjEmch7QewPJ2A3hGfFlnIoJB8MP veP68tyTT/mVkuu1Szdk9RjvbME66YV79ZL8lG2GCF/CbDY3uCOe+lodfwqO6poB2LUj tsjC/kKeo4CnvPP+u6P+oj5QYr29mpFwj48q+pDuCxErDw+LFVvSgeSZQ+czEjeE0vKx RrLw== X-Gm-Message-State: AJIora+0SJIrTv8PhJfklnzllTPaljwZxVwel/ZYCNi5OLxPWXIMOiJA RG8n3MQbWZgAjoG3Vxm3bJhKnTiaTltOxUA3ueFFTmCRHTGg X-Google-Smtp-Source: AGRyM1sTmCr+DrWgD/fOg8RTQ/5jBSZ7rWCNzVIBGQoba1+RjWtnF9B0vPl7lMHktjSrviXDU8gtxiPgjs1RJk7g+EiJRRyAROd6 MIME-Version: 1.0 X-Received: by 2002:a05:6638:24c7:b0:331:f0ae:3a17 with SMTP id y7-20020a05663824c700b00331f0ae3a17mr2521427jat.238.1656163747376; Sat, 25 Jun 2022 06:29:07 -0700 (PDT) Date: Sat, 25 Jun 2022 06:29:07 -0700 In-Reply-To: <00000000000073aa8605e1df6ab9@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000da315705e245abfa@google.com> Subject: Re: [syzbot] general protection fault in do_mpage_readpage From: syzbot To: hdanton@sina.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, willy@infradead.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 4c27dc762d7b60fa23c6eab2309ca6fc625588dd Author: Matthew Wilcox (Oracle) Date: Sat Jun 11 02:58:24 2022 +0000 mpage: Convert do_mpage_readpage() to use a folio bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16d2a888080000 start commit: 34d1d36073ea Add linux-next specific files for 20220621 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=15d2a888080000 console output: https://syzkaller.appspot.com/x/log.txt?x=11d2a888080000 kernel config: https://syzkaller.appspot.com/x/.config?x=b24b62d1c051cfc8 dashboard link: https://syzkaller.appspot.com/bug?extid=dbbd022e608bb122cf4e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1216c174080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14362fd8080000 Reported-by: syzbot+dbbd022e608bb122cf4e@syzkaller.appspotmail.com Fixes: 4c27dc762d7b ("mpage: Convert do_mpage_readpage() to use a folio") For information about bisection process see: https://goo.gl/tpsmEJ#bisection