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[2620:137:e000::1:20]) by mx.google.com with ESMTP id bf1-20020a170902b90100b00161e5dcc680si20079658plb.358.2022.06.10.00.32.33; Fri, 10 Jun 2022 00:32:50 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346523AbiFJHKh (ORCPT + 99 others); Fri, 10 Jun 2022 03:10:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346454AbiFJHKW (ORCPT ); Fri, 10 Jun 2022 03:10:22 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA96F325269 for ; Fri, 10 Jun 2022 00:10:19 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id r26-20020a5d96da000000b006699181eb7dso4104189iol.14 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=hoAs//1Xof9xeMWzblW3EgnTTJ7T6aik1HPBS/ciEzuojuAcODDquvgPch5fPXW2rA Y4Gqza+Bse+NB4fKG+dDcOqMA5teNtxvebpXSb4ztS7Iq5e9HMoa5XNnboQk/EEk4/Tk Z/swK88ZoCtGeuidfo4yV6b2tJZkBmO3amBJr+fARqR0K+fzGZoENhO5cT3js6TANH+z g2hlVgXGptbvxc7LFADWWK+pdKCH+U3pRgZiclSpkC9881vsNEzymiUuZ4N9IUOThprb y3eBkvQR5wS6Qs4Hcm2G9zWt8j+NdyWYyR0Rn7pehshr7FKSFjjeAGiNn039OTQC/hDl iimA== X-Gm-Message-State: AOAM530jDDplIFdaOYSkUxFLTtuseKTcvQtp0ag9U8HpR79cuho7iJPn 2bQ/SqXFNyVNlYq549dTEQrcE1lZEuh16S2jX+PEIBcU69MG 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" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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