From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794065076; b=h9v2+J/6YYNbX8BmMo18CnVl81tmYSdQEail2MKIzCFC92y7BK7za6Tf0wyizmdq3y0E bPe2zygYXuXF8X9gHWkau1Yh7p2zK06DubKkUvUkFpG0vUAsUl2sJdTGOw4wnwsng1qz1 d9MKev2CJCeiXMUpFx4f92XlNIrlUaktoR5zRkDc8vzdY7BrhiFXWrueLZEIPPRLWc4VG zWrpXNugIwcZHHQOejsAAaq66V14LRv3jDivzkUvHFehyOg0o0GiqX9t00fx1ykhbPJLq 0+DOJaHsgUjxT9iMTXWpJxOxrzB6JUfO+UrnfsHT9CBTCn/ek/QgRAJZGj19/qYi2nw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794065076; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=ChM8rJ2L70LWbuavS++3jwuEc5DMp+8kd+IvJIFfLKw=; b=UWUbc4+PedkLTjsjU+t6gemdoS0apxnfDLliEb1B8LJKFanbLAxI9yGkMDOigLs/SJlN qKvgwzr08FXPjnOAHF8cA2TwmmTjhQv1pXLf9cT6jfx6hs7VjfS2fTs7o+lLosuUM6o8D HUxZtqjU0SMqjg3rbWkwGhhzWj4te0GCN446u8XETzqocQ+7hCmSSlFF6bd6NSmSR23ae SQKTrO4KUAX+3daqkyGrB5+VR6XJv00WS75CSBQhu7uEeU0tyEDtfcZrVc17o7o7vxiR+ C00BbwRcuEWbJJb0f+C9ApI4QjmjR6KMucyV9JY/ZO71wjTIiy0wkwBjisowGyL693Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=p5wKItNL; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BC96F606A330; Sat, 7 Nov 2026 15:24:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=p5wKItNL Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B8FC1F0089F; Sat, 7 Nov 2026 15:24:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794065075; bh=ChM8rJ2L70LWbuavS++3jwuEc5DMp+8kd+IvJIFfLKw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=p5wKItNLbr66FBk1Ii6eC38l+17hXf4rJAczTMY0F2VPJvoPhSGD66O17uCuN1yMb Bol1UTBGuh4JameilSCPzhQvWXu/ZCfCkNEB9SeosBJsNaX0/la1mdrOGmc8SuY6PC sFLBy2yqf4Cjqtu2QcEJne5rto4vfYX8mR8c6NN4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hyunchul Lee , Namjae Jeon , Sasha Levin Subject: [PATCH 7.3 0914/1257] ntfs: wait for attribute folio writeback before update Date: Sat, 7 Nov 2026 08:53:30 -0500 Message-ID: <20261107135004.591873867@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hyunchul Lee [ Upstream commit 418452b43d722b3c1e9a711c9f49f3dbe2afaf34 ] ntfs_inode_attr_pwrite() locks an attribute folio before copying a new attribute image into it, but taking the folio lock does not wait for an already-running writeback BIO to complete. The writeback path can unlock the folio while PG_writeback remains set and the BIO still references the folio memory. Fixes: 115380f9a2f9 ("ntfs: update mft operations") Cc: stable@vger.kernel.org Signed-off-by: Hyunchul Lee Signed-off-by: Namjae Jeon Signed-off-by: Sasha Levin --- fs/ntfs/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index a777de8a80c72..b3c5219c7b770 100644 --- a/fs/ntfs/inode.c +++ b/fs/ntfs/inode.c @@ -3739,6 +3739,8 @@ static s64 __ntfs_inode_non_resident_attr_pwrite(struct inode *vi, folio_lock(folio); } + folio_wait_writeback(folio); + if (count == PAGE_SIZE) { offset = 0; attr_len = count; -- 2.53.0