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 0A88EC4332F for ; Mon, 13 Nov 2023 11:00:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230090AbjKMLAh (ORCPT ); Mon, 13 Nov 2023 06:00:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229870AbjKMLAe (ORCPT ); Mon, 13 Nov 2023 06:00:34 -0500 Received: from mail-pj1-f70.google.com (mail-pj1-f70.google.com [209.85.216.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 502C410D8 for ; Mon, 13 Nov 2023 03:00:31 -0800 (PST) Received: by mail-pj1-f70.google.com with SMTP id 98e67ed59e1d1-28016806be2so5263184a91.1 for ; Mon, 13 Nov 2023 03:00:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699873231; x=1700478031; 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=nurGn4++F4CxaCRHpLPUpX0XmLm4g0gqNDAXT8uNP4k=; b=vUE3bDsmys+cHIqGBEeji+BhXkAOBnWS9Sj2LR4ozklK7arTmw7/12q1YV7q9EVmfi vs6HmV960JWbd8KFmUjcGfKPDnbGGRF3MlAFsnkceohQrcc29nUjbCshDVUTvmX7Elwz ViiWuIlJsgsd5jctJlPIP1fCVdODRFfmgDIMYZtWNGfVS9EMIhNstk5+wXrVKgD/BbD+ JBu43OLUjcakCDKgca/W87m0duCTuoteXCsQTU/lQP7fDw4/H8yB40bl4+B6Jououow0 7xNeGHO8Sar0NEogDGIQF83XwJcN8rzd3AiqiWx8/3WzDRfNQksugDFHP3KJfkq6MCeh AaqA== X-Gm-Message-State: AOJu0YxO8C0jzcBzritsQ+c0ZRy3Rwd8g0tAPEod5v9bAtwm/trB79sE r3jJWH/Ptbm7SeF4NpoclZiG1pp/1Sex4LNiYpMFBKWXl06ybTg= X-Google-Smtp-Source: AGHT+IGbzcFfYX7bbCHDle8+OruXULi0uV5DEkYXrCf+B13BPLAoak4Kk6vx+RpXRBbLq6y2e5tFFmJEMYiW+qwpVcS/6QrEeHJH MIME-Version: 1.0 X-Received: by 2002:a17:90b:2291:b0:280:47ba:7685 with SMTP id kx17-20020a17090b229100b0028047ba7685mr2879315pjb.0.1699873230916; Mon, 13 Nov 2023 03:00:30 -0800 (PST) Date: Mon, 13 Nov 2023 03:00:30 -0800 In-Reply-To: <000000000000b1fda20609ede0d1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000179181060a069430@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..c91a37be5589 100644 --- a/fs/squashfs/file.c +++ b/fs/squashfs/file.c @@ -553,6 +553,9 @@ static void squashfs_readahead(struct readahead_control *ractl) if (!pages) return; + printk("p: %p, bs: %d, bl: %d, mp: %d, start: %d, fe: %d, %s\n", + pages, msblk->block_size, msblk->block_log, + max_pages, start, file_end, __func__); for (;;) { pgoff_t index; int res, bsize; @@ -566,6 +569,8 @@ static void squashfs_readahead(struct readahead_control *ractl) max_pages = (expected + PAGE_SIZE - 1) >> PAGE_SHIFT; + printk("p: %p, mp: %d, e: %d, idx: %d, s: %d, %s\n", pages, max_pages, + expected, pages[0]->index, start, __func__); nr_pages = __readahead_batch(ractl, pages, max_pages); if (!nr_pages) break; diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 22e812808e5c..aad49a62b5ce 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -275,6 +275,8 @@ static int squashfs_fill_super(struct super_block *sb, struct fs_context *fc) if (msblk->block_log > SQUASHFS_FILE_MAX_LOG) goto failed_mount; + printk("bs: %d, bl: %d, %s\n", msblk->block_size, msblk->block_log, __func__); + /* Check that block_size and block_log match */ if (msblk->block_size != (1 << msblk->block_log)) goto insanity;