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 9AA5CC4332F for ; Mon, 13 Nov 2023 12:10:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229668AbjKMMKt (ORCPT ); Mon, 13 Nov 2023 07:10:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229584AbjKMMKr (ORCPT ); Mon, 13 Nov 2023 07:10:47 -0500 Received: from mail-pg1-f197.google.com (mail-pg1-f197.google.com [209.85.215.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2BD6D75 for ; Mon, 13 Nov 2023 04:10:44 -0800 (PST) Received: by mail-pg1-f197.google.com with SMTP id 41be03b00d2f7-5b7dfda133dso3861682a12.0 for ; Mon, 13 Nov 2023 04:10:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699877444; x=1700482244; 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=/bMAkJl1EeK0/SJE7D1xym8LHwFYj+jKelRKIgovb3U=; b=bn9CiIA9hlky1nvw8J0aAhE5lr+xwWZ4b17F4w2mTMwqqpwie/HBGvypyn8lV3XsUz IieXYi2InnyHg9qyD21Po1adfYgmBdEAIuxyd8lxU5YZTXqO8InGFCE3OAE7a1NFfpou v/qJT00TIXYVXXf1q6xRkwU3enHaXRdhFArGDxJDTXLc7ENjWeNpUy6RCnHnwJVy2vfq AXwas4qNs6cMTv3iFC2AzvC28N3T/p8h0bh25/MroeuS4kXN+1IBwiEP6EKGbCXLJtLp 8fepen9CRCOIBxNIXugos0dXI2iGz3hid+pMkJDxzHw94PxTxPJzCsvz+24N8BD5F9fB oVdw== X-Gm-Message-State: AOJu0Ywc6HJtRqLP6g8j+9f6rwUUJ2LaNYv2++nRb7hpOAsWnGRB9xDX 0uZXoS+8vfsPu4L7yHgKgEIRoHk/9mNHqH7IQm+GL20vOGyq2Jc= X-Google-Smtp-Source: AGHT+IELclRzs++Gy3P6hvvghIGx8xzhfDWVPkNisTjgxdmjwz4N66+pTiTQQMGjeA41iUZsYKrSlkNViI+AxgUvtf4xPeIcZWi+ MIME-Version: 1.0 X-Received: by 2002:a65:6212:0:b0:5ac:26f:db7c with SMTP id d18-20020a656212000000b005ac026fdb7cmr1735464pgv.8.1699877444101; Mon, 13 Nov 2023 04:10:44 -0800 (PST) Date: Mon, 13 Nov 2023 04:10:43 -0800 In-Reply-To: <000000000000b1fda20609ede0d1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000037ae74060a078f99@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..a60c2be4447e 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,isr: %d, start: %d, %s\n", pages, max_pages, + expected, i_size_read(inode), 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;