From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F57E18DB26 for ; Tue, 4 Aug 2026 00:03:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785801803; cv=none; b=q5nQlKhvmyg/NNuSoZA7pFytbMV/TVsEbs1REH9lvnugoeQxkPvxWHy5ebbY1PmRd2qk5fsyoevGSoIAglWf2OAgxZNt1tptH+7NJV9vz6RIXGBdkwJ/lCvxPf5qfcUFPO0JrYyB4MghAmNz5yGG8eMMJh2Q5Ppk08SxKpZuh5c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785801803; c=relaxed/simple; bh=33WH7+h7k5Ces1sTJuwyd9sOJP5vQ9LI8/AOwxjtcmI=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=aXCV67pPt8mtPbgjfdM0X87FxY+eBjH77ywJ2gB6OLzqQXbcvV48m6s7dHZkX2HBrfqEkt8vgmPpUW5fYkIg+VswqqdqGpwqWk2yL8SyMfEKFttOloiAVPVLx1a4yu9b9ynygBbFRQiDfetlsyU6KVtHIJk1Z5Zvv89gXNmM/jM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VdxUSWC9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VdxUSWC9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B76841F000E9; Tue, 4 Aug 2026 00:03:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785801802; bh=1TXFHbmRwQJfdbgkVjvPjcA8Q5xydQ9Bv7Wi5QTUyS4=; h=Date:Cc:Subject:To:References:From:In-Reply-To; b=VdxUSWC9yVSFUNLJlsT3XPDpa/hRew44xUJZ1g5aww9MdauTFiBKFDs0D7GWudVPN /QiD05eJpH6sG3EAbVJtPvBtkjvaN1pKi/MNMuesInylCVDwtoZB3IOt63UkOJc+gB yaDYBe42n6ix5i8Yc0PoYVkHnTZ7hmLASwWsRz/Xab3FLjWHCPddoH36JWgTjiJuB6 FqSijOJEraN0mKtVZQ7gjYvwvaXUEEE5IKjUAoBvu9XXR4jWybIjW/vNJ5v8o/63jT bNKdFCfEDtO0uXXshwQlbDJLGcRXYhAAdbzFh+38YDtjRFvz+OUoAgOd35pbzYhHIH +vZxuePudirLQ== Message-ID: Date: Tue, 4 Aug 2026 08:03:18 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, qiwenjie@xiaomi.com Subject: Re: [PATCH v2] f2fs: reject invalid recovered filename lengths To: Wenjie Qi , jaegeuk@kernel.org References: <20260803114153.1499527-1-qiwenjie@xiaomi.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20260803114153.1499527-1-qiwenjie@xiaomi.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 8/3/26 19:41, Wenjie Qi wrote: > Recovery uses raw_inode->i_namelen directly when rebuilding fsynced > dentries. A zero-length name uses no dentry slots, so recovery can > report success without recreating the dentry. > > Treat zero-length and oversized recovered names as corruption, mark > NEED_FSCK, and stop recovery with -EFSCORRUPTED. > > Signed-off-by: Wenjie Qi Reviewed-by: Chao Yu Thanks,