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 951CDC433FE for ; Mon, 31 Jan 2022 11:17:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376416AbiAaLRS (ORCPT ); Mon, 31 Jan 2022 06:17:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377303AbiAaLJy (ORCPT ); Mon, 31 Jan 2022 06:09:54 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 27762C0613BE; Mon, 31 Jan 2022 03:07:15 -0800 (PST) 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 E7F47B82A31; Mon, 31 Jan 2022 11:07:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3B71EC340E8; Mon, 31 Jan 2022 11:07:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1643627232; bh=T9vmWlFuEZ7tUwv1N3YJNAHV4fo2Tr/ZRcQFx4eV3Ks=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E8HyNMW0fizVNtBiLf4+VFtHpp/imNFxvTlY0QUO/y2qQWUCGAH4Hh33MybkCfBnb ai/VTj+2ahlegsebHUJWS9OEaDaDwFlU78WrVvMqbFHciB7wcbSbCKg/DKnB7zbN50 6zdlHyEDOYSkE+mTjXrr1zkvru+56YeYtvw3bR1c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, butt3rflyh4ck , Christoph Hellwig , Jan Kara Subject: [PATCH 5.15 017/171] udf: Restore i_lenAlloc when inode expansion fails Date: Mon, 31 Jan 2022 11:54:42 +0100 Message-Id: <20220131105230.596049069@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220131105229.959216821@linuxfoundation.org> References: <20220131105229.959216821@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jan Kara commit ea8569194b43f0f01f0a84c689388542c7254a1f upstream. When we fail to expand inode from inline format to a normal format, we restore inode to contain the original inline formatting but we forgot to set i_lenAlloc back. The mismatch between i_lenAlloc and i_size was then causing further problems such as warnings and lost data down the line. Reported-by: butt3rflyh4ck CC: stable@vger.kernel.org Fixes: 7e49b6f2480c ("udf: Convert UDF to new truncate calling sequence") Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara Signed-off-by: Greg Kroah-Hartman --- fs/udf/inode.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -317,6 +317,7 @@ int udf_expand_file_adinicb(struct inode unlock_page(page); iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB; inode->i_data.a_ops = &udf_adinicb_aops; + iinfo->i_lenAlloc = inode->i_size; up_write(&iinfo->i_data_sem); } put_page(page);