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 8AFADC072A2 for ; Thu, 16 Nov 2023 01:14:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235065AbjKPBOz (ORCPT ); Wed, 15 Nov 2023 20:14:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38154 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235056AbjKPBOx (ORCPT ); Wed, 15 Nov 2023 20:14:53 -0500 Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3CEE2192 for ; Wed, 15 Nov 2023 17:14:50 -0800 (PST) Received: by mail-pf1-f199.google.com with SMTP id d2e1a72fcca58-6c7c6ae381fso263108b3a.2 for ; Wed, 15 Nov 2023 17:14:50 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700097289; x=1700702089; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=21E7e9RhSv6D07zzIzwFZc3l/Yr9Y30fEeH+mcQUYOM=; b=d+MaaKvQ+uSFV08IMXpTHe0LP1SvIHw3tKhelPWGXx9rSnVUMlsUorPcMBnMqVcF6E 3E1qv5vUfSWaHXUBf5ZJ1JBhFac6DgwkqkE7CDp7fnnb0oO2ywbcUUq79R6eSulAlp1+ 5sy7SNMFQZ79uKTs37WyVceaJDKAzwh+Lu31rS9ujVMwGcfkEmfHooAcs+r8eTNRLEiL 265PZA2pqhLgb/66MaE1dVNfY47NZAXw4WP/03i8t8Zu+eqflhqYXO0f+EdTcCrsQwkh v5ZkAD1qbuJjSSDCVQQ8KMNHoVppqui7auTzeXSaAnKRVRQnWsE/U9M6of2JgIB84Xyo m/9w== X-Gm-Message-State: AOJu0YwESb8+4oNTMYewXgjsEj0/+ShQ+m8T7J39fCpABfwxw70922nS 7pPVWkCTDpih17ZzUTo+fOTYscXS9tq3W8hjFxxjqNuZOaJyeXQ= X-Google-Smtp-Source: AGHT+IH1Ea2M6lYMLfMhEaGMVi2vG//gKFL17GWqGR+5zEzsuR34wgbxYia3ZB8+JyKRKoumWETQwdNw07kBlBK+JoeSB12nGtn7 MIME-Version: 1.0 X-Received: by 2002:a05:6a00:8509:b0:690:d251:28b9 with SMTP id ha9-20020a056a00850900b00690d25128b9mr3513941pfb.4.1700097289638; Wed, 15 Nov 2023 17:14:49 -0800 (PST) Date: Wed, 15 Nov 2023 17:14:49 -0800 In-Reply-To: <0000000000000526f2060a30a085@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000085ad3060a3abf6a@google.com> Subject: Re: [syzbot] [PATCH] test warning in squashfs_read_data From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [PATCH] test warning in squashfs_read_data Author: lizhi.xu@windriver.com #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ac347a0655db diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c index 581ce9519339..cf21494e3994 100644 --- a/fs/squashfs/block.c +++ b/fs/squashfs/block.c @@ -330,6 +330,12 @@ int squashfs_read_data(struct super_block *sb, u64 index, int length, if (next_index) *next_index = index + length; + printk("l:%d, i: %d, ol: %d, mbu: %d, %s\n", length, index, output->length, + msblk->bytes_used, __func__); + if (!length) { + res = -EIO; + goto out; + } res = squashfs_bio_read(sb, index, length, &bio, &offset); if (res) goto out;