Received: by 2002:a05:7412:d1aa:b0:fc:a2b0:25d7 with SMTP id ba42csp1818673rdb; Wed, 31 Jan 2024 09:57:16 -0800 (PST) X-Google-Smtp-Source: AGHT+IFIS8/GwPDkqknnXuqCK9gyrHgsIBKxj4rhZH/rFpSoZ90LZnFiiVaTlrtvJxxW6Kxrju+f X-Received: by 2002:a17:902:b701:b0:1d9:1b55:a37 with SMTP id d1-20020a170902b70100b001d91b550a37mr2330628pls.50.1706723836572; Wed, 31 Jan 2024 09:57:16 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1706723836; cv=pass; d=google.com; s=arc-20160816; b=pkm1rgumBW+PeHpE9q7wv+GL8mC+802E3ILlPiMejnzQw68ARw938us8S/qiby2Sz1 iAI8L9CYc84e2hza3c97TYhuDFzaEUvd6bk3ueMcSt6U7SgJwUkC+apDgBrSQj9lN447 LTluobXn/JwrMj4/x0784xfvsSP0DJNmeqXe44tplrYhDS9waPdQBU/iCRc37qcWLgOe xECCncYgGSFzwuTZ9DGDXN/IN3ehxm8f4ZyqOlwnTiGGXFc1ShmeEBP4D7LDdJHy4Ifx 1M4qFM+8Hc6lu/SXA02aJIOSjR3roG5lzX3YhyOvwMVPw6MbuhhjzFg6wiTO5X+KlGi9 d67A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=in-reply-to:content-disposition:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:message-id:subject:cc :to:from:date:dkim-signature:dkim-signature:dkim-signature :dkim-signature; bh=pX2DnOrLwWKLYumNK3TzC8Reh/LhxYlUXHdH/lnaQVY=; fh=JhVvXv+I/2AzFuz+N0Jgc61RMaE7rI6R2U2D3ufcEeU=; b=r7soVR8fwAA7+HhVMzOj9aistNhWvKqobupDvEMu6+TjCBEQxtm2fsfdAmVVY0X/qj lwqLrDZs0aNhlFwo5EHdI+GGDWpaYru+GXttxrG1DAJFZpdyVxTsS4Mg7HW9Q8UQsTMY +turhSJKXcOYgvGYGXSrhyT0gY5zgPo7sUhl8wn/sQPFTtIJa6HnKbKQ8Eemrq4rsXrD L9ZVSNNsQ7et/WbjrYXo7jo9+SyfqV0bIKDamFOmD/uXkZ3DM79Bv7OU3srz8aDSCC8E KBDSFS4Cy4f3D07yl8y2QqLQnGvOAn26Z5xqpeKCiaZrPH5u8sU0A9YMGzKXTp/wqqe0 MwiA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=T6eti3Jo; dkim=neutral (no key) header.i=@suse.cz header.s=susede2_ed25519; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=T6eti3Jo; dkim=neutral (no key) header.i=@suse.cz header.s=susede2_ed25519; arc=pass (i=1 spf=pass spfdomain=suse.cz dkim=pass dkdomain=suse.cz dkim=pass dkdomain=suse.cz); spf=pass (google.com: domain of linux-kernel+bounces-46893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-46893-linux.lists.archive=gmail.com@vger.kernel.org" X-Forwarded-Encrypted: i=1; AJvYcCUWwA36Q2nI/AcZ0OdqDJnVrMYtHxkQNdpp4O9gbVq2dTVozZFtJWDaxcZvQ3uXkB/3AoDrBk6hBCs+WE36nPP47Wg3Vqs+fybRQ8nz4w== Return-Path: Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org. [2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id lm11-20020a170903298b00b001d720fe91basi10178184plb.389.2024.01.31.09.57.16 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jan 2024 09:57:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-46893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=T6eti3Jo; dkim=neutral (no key) header.i=@suse.cz header.s=susede2_ed25519; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=T6eti3Jo; dkim=neutral (no key) header.i=@suse.cz header.s=susede2_ed25519; arc=pass (i=1 spf=pass spfdomain=suse.cz dkim=pass dkdomain=suse.cz dkim=pass dkdomain=suse.cz); spf=pass (google.com: domain of linux-kernel+bounces-46893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-46893-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 3ECBEB34A2D for ; Wed, 31 Jan 2024 17:19:33 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id ED2DE12CDB3; Wed, 31 Jan 2024 17:18:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.cz header.i=@suse.cz header.b="T6eti3Jo"; dkim=permerror (0-bit key) header.d=suse.cz header.i=@suse.cz header.b="tbHH6htc"; dkim=pass (1024-bit key) header.d=suse.cz header.i=@suse.cz header.b="T6eti3Jo"; dkim=permerror (0-bit key) header.d=suse.cz header.i=@suse.cz header.b="tbHH6htc" Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5145A1EF12; Wed, 31 Jan 2024 17:18:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706721530; cv=none; b=K0NawIozxj4/Eh/Q2mso2pbo0lndjtavKUP/e34Q4ZoUirQxWUUM6oTXu2PrbPMNgE0xKnx0sNQ7TyK0PnYGFd6skxn5Jr4FRXgnIygz1aai2jTtQOGOT/jqqlGyo0cdN1p5OYwQa28ILNd+aK8kxk9cCKdoYUGVwO6xnZd1xhQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706721530; c=relaxed/simple; bh=IIUrR5YxqrFodLFFKzfNxQbgIV0lT446TBY2XEfvZHQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cCUb1V1r6Tfqu0/iW2IjEympeelhZxytQZ3EUr1AAklhakBiM/hq1bzmyZk1LFCdn6RhX7lpsHLdFMUTP8FmJoc4ygUeom/5dF4b5WRFXtdq+tL1DGY/WkJn4CGLvVBCYpsKyi4wUFUGexHediXywbD/fovkt6FXEkv/HMnLM90= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz; spf=pass smtp.mailfrom=suse.cz; dkim=pass (1024-bit key) header.d=suse.cz header.i=@suse.cz header.b=T6eti3Jo; dkim=permerror (0-bit key) header.d=suse.cz header.i=@suse.cz header.b=tbHH6htc; dkim=pass (1024-bit key) header.d=suse.cz header.i=@suse.cz header.b=T6eti3Jo; dkim=permerror (0-bit key) header.d=suse.cz header.i=@suse.cz header.b=tbHH6htc; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.cz Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [10.150.64.98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 6B2BE22004; Wed, 31 Jan 2024 17:18:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1706721525; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=pX2DnOrLwWKLYumNK3TzC8Reh/LhxYlUXHdH/lnaQVY=; b=T6eti3JomHWyQK2w1ouQcH9N4rpG3PELNj74ZN4VaqatpzG0OGvDMrbfaCGpulVE9HVvK5 6V/stfT1hSlW3BChIjK1gikbVn5HYP9MKe2/UutxHWafVFnPZflIK4VqdaGX8SGo19ABer d9IsW/MUWk3AJRNXq/DGzvGtKYGIKPI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1706721525; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=pX2DnOrLwWKLYumNK3TzC8Reh/LhxYlUXHdH/lnaQVY=; b=tbHH6htc44POBCV+ShlckMgx2UO6ThqfIflJtvq/Rt1bmAUh4Z30usoPGlC0MGwUa088KV OQBUbijpEzcaSgDw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1706721525; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=pX2DnOrLwWKLYumNK3TzC8Reh/LhxYlUXHdH/lnaQVY=; b=T6eti3JomHWyQK2w1ouQcH9N4rpG3PELNj74ZN4VaqatpzG0OGvDMrbfaCGpulVE9HVvK5 6V/stfT1hSlW3BChIjK1gikbVn5HYP9MKe2/UutxHWafVFnPZflIK4VqdaGX8SGo19ABer d9IsW/MUWk3AJRNXq/DGzvGtKYGIKPI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1706721525; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=pX2DnOrLwWKLYumNK3TzC8Reh/LhxYlUXHdH/lnaQVY=; b=tbHH6htc44POBCV+ShlckMgx2UO6ThqfIflJtvq/Rt1bmAUh4Z30usoPGlC0MGwUa088KV OQBUbijpEzcaSgDw== Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 604E3132FA; Wed, 31 Jan 2024 17:18:45 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id pDt2F/WAumXQFwAAn2gu4w (envelope-from ); Wed, 31 Jan 2024 17:18:45 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 0ED1DA0809; Wed, 31 Jan 2024 18:18:45 +0100 (CET) Date: Wed, 31 Jan 2024 18:18:45 +0100 From: Jan Kara To: syzbot Cc: axboe@kernel.dk, brauner@kernel.org, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [reiserfs?] BUG: unable to handle kernel NULL pointer dereference in reiserfs_find_entry Message-ID: <20240131171845.okzidcm6gylcy4gw@quack3> References: <00000000000073b6d905eb48de3f@google.com> <000000000000e3d3f9061040b2ff@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000e3d3f9061040b2ff@google.com> Authentication-Results: smtp-out1.suse.de; none X-Spamd-Result: default: False [-0.10 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-3.00)[100.00%]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; URI_HIDDEN_PATH(1.00)[https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453]; TAGGED_RCPT(0.00)[4654552e088ed458b10d]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; RCPT_COUNT_SEVEN(0.00)[8]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.cz:email,syzkaller.appspot.com:url,suse.com:email]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[]; SUBJECT_HAS_QUESTION(0.00)[] X-Spam-Level: X-Spam-Flag: NO X-Spam-Score: -0.10 On Wed 31-01-24 08:52:05, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit 6f861765464f43a71462d52026fbddfc858239a5 > Author: Jan Kara > Date: Wed Nov 1 17:43:10 2023 +0000 > > fs: Block writes to mounted block devices > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e6fb5be80000 > start commit: 51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453 > dashboard link: https://syzkaller.appspot.com/bug?extid=4654552e088ed458b10d > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1177c895280000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f4b2a5280000 > > If the result looks correct, please mark the issue as fixed by replying with: Makes sense: #syz fix: fs: Block writes to mounted block devices Honza -- Jan Kara SUSE Labs, CR