Received: by 2002:a6b:fb09:0:0:0:0:0 with SMTP id h9csp1164618iog; Wed, 15 Jun 2022 23:46:17 -0700 (PDT) X-Google-Smtp-Source: AGRyM1uKQkBc37JcP++RoHseNL9PfxDZWLWyh3+ux51xqP4WeXVti/szo/xM5rknBB6W6RHd8BZv X-Received: by 2002:a17:906:1001:b0:715:8356:d4da with SMTP id 1-20020a170906100100b007158356d4damr3185148ejm.10.1655361977363; Wed, 15 Jun 2022 23:46:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1655361977; cv=none; d=google.com; s=arc-20160816; b=eFHSMIfH3wRZF2gsHLAA+4pnE1499cYWjAkgJ12BTLgYT/gRb23A7OzrN58vEyD8Y2 hOhe/RNKgiLQCFTljnAemAuuO+EY9efLIK4Eiq1s2arOz+igryuPfHAXlW0Gsoq0/yya HuJvE1j03+GKu3xU/R+D8Se9EP0c4xVj86JkfFhj+gMFe4uSZubi/RQ4Re/sxI63rQsk Y4WuZrXSEgbgHF4GG8NoO1YXGTSu5uwt0uCeQzUVLJb5twwL8h9pwWLONPYToRxBHX/e LtR4VSfZLRSmM+9BmMLgNOoVZrFUb3ktqhb+WOTXOTeW/n1TI71CoC4qCyBkUl7kWA9B 7oXw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=UkEQpl9oG4UAiReXpKpQ12WPSYk8VOykHiANRLYFLkM=; b=HzyFmj2i6QeAm/PgFEMuRCY2nnsOPY412KazZKHzLQJRXwj1RsthSl3zhCX8Anzd49 m/oIwUoBd0ujWRGEw/to42ydFMdsm+rr6PFJk+3/MpQpSZQDsxzIEghErNtnOTFCABG5 VCoEYnpwHvit0v47CjyAVZRrmoYI+4cTz7yn9QAbdx86ueV12ZpD/JS9u4HXuuf+cfU9 e3zKWpq+leCVZKLAlnFhoK9v9msOyhqfqsSi9yBYP2dJ78jgf0vi8frIIWpiDfylLf8v XgnLHhNAlc1wLuvC9qioKhyEkc0DsGDwNS8QLikyN6YhkWm2++0l7naVbppZMgQ75H6A X8dg== ARC-Authentication-Results: i=1; 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 Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id i2-20020aa7c702000000b0042fb6189982si1376481edq.490.2022.06.15.23.45.52; Wed, 15 Jun 2022 23:46:17 -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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359170AbiFPGfQ (ORCPT + 99 others); Thu, 16 Jun 2022 02:35:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344922AbiFPGfP (ORCPT ); Thu, 16 Jun 2022 02:35:15 -0400 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0729F56770; Wed, 15 Jun 2022 23:35:15 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id CDB3E68AA6; Thu, 16 Jun 2022 08:35:10 +0200 (CEST) Date: Thu, 16 Jun 2022 08:35:10 +0200 From: Christoph Hellwig To: Qu Wenruo Cc: Christoph Hellwig , dsterba@suse.cz, syzbot , akpm@linux-foundation.org, clm@fb.com, dsterba@suse.com, 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 Subject: Re: [syzbot] KASAN: use-after-free Read in copy_page_from_iter_atomic (2) Message-ID: <20220616063510.GA5608@lst.de> References: <0000000000003ce9d105e0db53c8@google.com> <00000000000085068105e112a117@google.com> <20220613193912.GI20633@twin.jikos.cz> <20220614071757.GA1207@lst.de> <2cc67037-cf90-cca2-1655-46b92b43eba8@gmx.com> <20220615132147.GA18252@lst.de> <00bbda63-dc00-05c0-4244-343352591d98@gmx.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00bbda63-dc00-05c0-4244-343352591d98@gmx.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham 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 On Thu, Jun 16, 2022 at 05:27:04AM +0800, Qu Wenruo wrote: >> And how do I find out the logic address of the tree root? > > For tree root, "btrfs ins dump-super | grep '^root\s'. > > For other tree blocks, "btrfs ins dump-tree " then with other other > keywords to grab. Thanks a lot !