From nobody Mon May 25 00:09:52 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (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 707753D6465; Wed, 20 May 2026 11:03:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779275033; cv=none; b=X0MfZrxI1lI/5AOt9apaVZo/Y7ubFt+GwEw5z0i3ouOL/8y0W5bo1Gh7pdCrU7jrsXurV3mQC89aXbBF2ULhStBjybIGqq6x6mAwGTleToAOGEZBQ6qSAOjyb5WN4LuzwmtkckSvBrn0voELvqXlAOB6jAVcW4WkuFVSlIDa9pI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779275033; c=relaxed/simple; bh=TT6nGbQWZeOLzn1cHV/UC+sJv5cTDeqnz/q7s8M/5vY=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=pEUaJ6ZRlqXb1zy20irO5f9LYgTBFJ5GrVPNuxYMfSND+3+ly3kIh43EcDG4Tdz1qxBokFgPo12MrkT/GtgeMf668AheFDR6eaS77Fa09I8MGVjiJKmwToIX/4wpstr/GVvsVA0iyBjXEJaO/Zy/TsOmjHHZ3xTTigQ8EYCWJ6s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 9129e9c4543b11f1aa26b74ffac11d73-20260520 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:fd41aa1f-6ded-4db4-bfaf-ea86376382fe,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:e7bac3a,CLOUDID:25e3d51ed72abeb9510d89e4e54cf502,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:102|850|865|898,TC:nil,Content:0|15|50,E DM:-3,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA :0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 9129e9c4543b11f1aa26b74ffac11d73-20260520 X-User: zenghongling@kylinos.cn Received: from localhost.localdomain [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 536371900; Wed, 20 May 2026 19:03:44 +0800 From: Hongling Zeng To: linkinjeon@kernel.org, hyc.lee@gmail.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, zhongling0719@126.com, Hongling Zeng Subject: [PATCH] ntfs: Validate error in ntfs_lookup() Date: Wed, 20 May 2026 19:03:40 +0800 Message-Id: <20260520110340.78418-1-zenghongling@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Check that MREF_ERR returns non-zero before using as error pointer. This prevents potential ERR_PTR(0) when error code is zero Fixes: af0db57d4293 ("ntfs: update inode operations") Signed-off-by: Hongling Zeng --- fs/ntfs/namei.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c index 10894de519c3..b72839575fa8 100644 --- a/fs/ntfs/namei.c +++ b/fs/ntfs/namei.c @@ -236,7 +236,9 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino= , struct dentry *dent, } ntfs_error(vol->sb, "ntfs_lookup_ino_by_name() failed with error code %i.= ", -MREF_ERR(mref)); - return ERR_PTR(MREF_ERR(mref)); + if (MREF_ERR(mref)) + return ERR_PTR(MREF_ERR(mref)); + return NULL; handle_name: { struct mft_record *m; --=20 2.25.1