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 46896C4332F for ; Thu, 20 Oct 2022 08:54:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229828AbiJTIyd (ORCPT ); Thu, 20 Oct 2022 04:54:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229717AbiJTIy2 (ORCPT ); Thu, 20 Oct 2022 04:54:28 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8791318E712 for ; Thu, 20 Oct 2022 01:54:11 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 92BEF226EA; Thu, 20 Oct 2022 08:54:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1666256048; 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=IWCwYL0F5/rgcYBecBCS8oPEbaLRdpIuDHctO7ZfYl8=; b=GTh6VhaVjqnhUatMl0CFQhzs+Rs5HnYmmqYEJHaZjgtym5vZi8mi84uYRl8vE59zfgEd+W pKdCTagw22LmdpzKcnqz4LFzm65jS99oEbyEx27FUeDIrb4WvI8UNYmT8wxxlHpLrIN0j6 zhchcSf80XGqZpbiROnAY40lLPtnNCU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1666256048; 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=IWCwYL0F5/rgcYBecBCS8oPEbaLRdpIuDHctO7ZfYl8=; b=MUaCjTF03TVHchgmaHxwuzvquE6CP4BoDlGu+ou/e6mffn1Kmm550fHBOql/9fd4J4mdIE hHGiRaD/7jCSIbBA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 82B9413AF5; Thu, 20 Oct 2022 08:54:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id S3HiH7AMUWMQKwAAMHmgww (envelope-from ); Thu, 20 Oct 2022 08:54:08 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 1C168A06F2; Thu, 20 Oct 2022 10:54:08 +0200 (CEST) Date: Thu, 20 Oct 2022 10:54:08 +0200 From: Jan Kara To: syzbot Cc: jack@suse.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] BUG: unable to handle kernel paging request in dquot_add_space Message-ID: <20221020085408.ebvapvm722t62c7q@quack3> References: <000000000000cb197c05eb718fe5@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000cb197c05eb718fe5@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 19-10-22 23:37:39, syzbot wrote: > HEAD commit: bbed346d5a96 Merge branch 'for-next/core' into for-kernelci > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=12890b76880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e > dashboard link: https://syzkaller.appspot.com/bug?extid=7f3f0e8b232d8c69dac1 > compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 > userspace arch: arm64 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+7f3f0e8b232d8c69dac1@syzkaller.appspotmail.com > > Unable to handle kernel paging request at virtual address 0000000100000117 Hum, this looks very much like some memory corruption because the where we expect a pointer, there is (u32)-1 value... Let's wait if syzbot finds some reproducer. Honza -- Jan Kara SUSE Labs, CR