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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AEF49ECAAA1 for ; Tue, 30 Aug 2022 22:54:27 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1oTA7n-0005m6-6H; Tue, 30 Aug 2022 22:54:27 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1oTA7m-0005lr-0X for linux-f2fs-devel@lists.sourceforge.net; Tue, 30 Aug 2022 22:54:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=YlS5yDa/+KcKeNdodog7ChRUjhtB8L0Q9vqIeaTxWhw=; b=iRibXfVXw6SJf5OvG2oXahYFD5 rh19SvUF72b+uiRZQcSn+hVAt4Ny4VaF++kWUNcir9JhfduMSkHw3Rc8miNJWUBsh3jM3FZ/AnWvl jP5BNP73sLr9dj5/Bn6kW6v6xctWNnjLIO552/B+7W8v5O90kfDfe1skY+iTFSy6teI8=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:Cc:To:From :Sender:Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=YlS5yDa/+KcKeNdodog7ChRUjhtB8L0Q9vqIeaTxWhw=; b=m CCzqCVlK/7lZA1WllQoVRxoQ7Ml3+VGL0ZxrQk+xgYrtarLAZTFhEldYdKHptwhYH6075ynBl8HiA ESRg3oMSqN15/NOgmPGuLWS0kCWU2a0wExEPen0XMJA7nfUcWxRWTo3qIuzFLDn0+m5iBjt2ySuy4 FFUXUGO+m7VtYg1g=; Received: from ams.source.kernel.org ([145.40.68.75]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1oTA7j-0000vm-Ro for linux-f2fs-devel@lists.sourceforge.net; Tue, 30 Aug 2022 22:54:25 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EE087B81CCF; Tue, 30 Aug 2022 22:54:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75248C433D7; Tue, 30 Aug 2022 22:54:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661900050; bh=KEid+7kvUT3KgTg6693WIkEqqlhKnYmQIIvaC6xRZ84=; h=From:To:Cc:Subject:Date:From; b=YfrUOS2KHTb/I5OSrN0nhxWjcz6EbMXxna1r0dihmtHU3Ixx4FzrnjAA6igduRNun Kqjij67/zLqnufSaXsgE47ZyBYarG6+eGDDbL6vOHqphZl8pkN3Y35FFtNwlA+Nq14 hfuXTBhYE6dmNfjhFujLEyMLJ3NcHuL3S13QJUeGkA2+odl9NdCi5hIqrEmsO7Cg78 3DdeFQAcFoSu7gPlGaCUqavOKxonSSzDtZRWhKEWUdMang1+GudxJYNWnw5LT3i3qe 8jmdRRyf3ppMCBgcdJSqSrDSot78d/IQDkL3FbL1MVQ2stOIQyS5VaUvO7reBHb+K4 ULTc90sp4Hpdg== From: Chao Yu To: jaegeuk@kernel.org Date: Wed, 31 Aug 2022 06:53:58 +0800 Message-Id: <20220830225358.300027-1-chao@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Headers-End: 1oTA7j-0000vm-Ro Subject: [f2fs-dev] [PATCH v2] f2fs: fix to disallow getting inner inode via f2fs_iget() X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net From: Chao Yu Introduce f2fs_iget_inner() for f2fs_fill_super() to get inner inode: meta inode, node inode or compressed inode, and add f2fs_check_nid_range() in f2fs_iget() to avoid getting inner inode from external interfaces. Signed-off-by: Chao Yu --- v2: - don't override errno from f2fs_check_nid_range() - fix compile error fs/f2fs/compress.c | 2 +- fs/f2fs/f2fs.h | 1 + fs/f2fs/inode.c | 13 ++++++++++++- fs/f2fs/super.c | 4 ++-- 4 files changed, 16 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 730256732a9e..c38b22bb6432 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1947,7 +1947,7 @@ int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) if (!test_opt(sbi, COMPRESS_CACHE)) return 0; - inode = f2fs_iget(sbi->sb, F2FS_COMPRESS_INO(sbi)); + inode = f2fs_iget_inner(sbi->sb, F2FS_COMPRESS_INO(sbi)); if (IS_ERR(inode)) return PTR_ERR(inode); sbi->compress_inode = inode; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 408d8034ed74..35f9e1a6a1bf 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3467,6 +3467,7 @@ int f2fs_pin_file_control(struct inode *inode, bool inc); void f2fs_set_inode_flags(struct inode *inode); bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page); void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page); +struct inode *f2fs_iget_inner(struct super_block *sb, unsigned long ino); struct inode *f2fs_iget(struct super_block *sb, unsigned long ino); struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino); int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink); diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 6d11c365d7b4..965f87c1dd63 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -480,7 +480,7 @@ static int do_read_inode(struct inode *inode) return 0; } -struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) +struct inode *f2fs_iget_inner(struct super_block *sb, unsigned long ino) { struct f2fs_sb_info *sbi = F2FS_SB(sb); struct inode *inode; @@ -568,6 +568,17 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) return ERR_PTR(ret); } +struct inode *f2fs_iget(struct super_block *sb, unsigned long ino) +{ + int ret; + + ret = f2fs_check_nid_range(F2FS_SB(sb), ino); + if (ret) + return ERR_PTR(ret); + + return f2fs_iget_inner(sb, ino); +} + struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino) { struct inode *inode; diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b8e5fe244596..a5f5e7483791 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -4157,7 +4157,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) goto free_xattr_cache; /* get an inode for meta space */ - sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); + sbi->meta_inode = f2fs_iget_inner(sb, F2FS_META_INO(sbi)); if (IS_ERR(sbi->meta_inode)) { f2fs_err(sbi, "Failed to read F2FS meta data inode"); err = PTR_ERR(sbi->meta_inode); @@ -4265,7 +4265,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) goto free_nm; /* get an inode for node space */ - sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); + sbi->node_inode = f2fs_iget_inner(sb, F2FS_NODE_INO(sbi)); if (IS_ERR(sbi->node_inode)) { f2fs_err(sbi, "Failed to read node inode"); err = PTR_ERR(sbi->node_inode); -- 2.25.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel