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 41218C4332F for ; Tue, 14 Nov 2023 00:22:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230345AbjKNAWv (ORCPT ); Mon, 13 Nov 2023 19:22:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229511AbjKNAWt (ORCPT ); Mon, 13 Nov 2023 19:22:49 -0500 Received: from mail-pg1-f200.google.com (mail-pg1-f200.google.com [209.85.215.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 104FBD55 for ; Mon, 13 Nov 2023 16:22:47 -0800 (PST) Received: by mail-pg1-f200.google.com with SMTP id 41be03b00d2f7-5bdbd1e852dso5934397a12.0 for ; Mon, 13 Nov 2023 16:22:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699921366; x=1700526166; 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=FZXkQmXxs9uLoWmPwbfBonw96/b5rk+ItiuC8yaL3uw=; b=VBSG9+EAf24gtub9gZ9alqUwDssqg7O+ydmXTj5Gh2dd4r8FJ0BSHAsHXUse77ogdf xAA/mI0O39bxYlqdIzRfrOTqRLmBZnst/bGI51pD16yxVKnLKCj47VZw57BQMXBLWOWw U0ko/ulRnqbg1TPu/D8v1JF6R3kKld201BPTx1gxnK4pN+lQpzmSfZi/mIiv5DcaDr5B 12gekI8zZuAAszpVmcA0JWqiGUWE2odkPs3UQzbJQI3377RXnqBIWOST8YAgYYyhvbaA 1SPl5X9wgQHj6Y8+cwzSpW/pn9A9m2tMtMotPXvCz8QYZdTkkJ/3de3ZM73WzFh6FDc8 jhpQ== X-Gm-Message-State: AOJu0Yz8gZLIRNEU0bdX0mtI8Epk2AepK375gI2A6njfJx574BXXKZbj djUwYrVYBAQM+eP0c2ySk6S66DMyy5chwc77v2gLuqjDQpiAfUI= X-Google-Smtp-Source: AGHT+IFNH7ffKoAVkF9Y/Te3aRPho1BUZKdpE56f36mFQGzHMMq1YfU2ugRHiV02TTiRN3mDeHI0ILBq1vDKQ7z3pGkKtKOyVMjU MIME-Version: 1.0 X-Received: by 2002:a63:f54e:0:b0:5bd:d3f7:5192 with SMTP id e14-20020a63f54e000000b005bdd3f75192mr155049pgk.6.1699921366345; Mon, 13 Nov 2023 16:22:46 -0800 (PST) Date: Mon, 13 Nov 2023 16:22:46 -0800 In-Reply-To: <000000000000b1fda20609ede0d1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000308657060a11c90b@google.com> Subject: Re: [syzbot] [PATCH] Test oob in squashfs readahead 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 oob in squashfs readahead Author: eadavis@qq.com please test squashfs readahead oob #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 13d88ac54ddd diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c index 8ba8c4c50770..cb3753782d85 100644 --- a/fs/squashfs/file.c +++ b/fs/squashfs/file.c @@ -566,6 +566,8 @@ static void squashfs_readahead(struct readahead_control *ractl) max_pages = (expected + PAGE_SIZE - 1) >> PAGE_SHIFT; + if (!max_pages) + break; nr_pages = __readahead_batch(ractl, pages, max_pages); if (!nr_pages) break;