From nobody Fri Dec 19 00:03:21 2025 Received: from mx0a-0064b401.pphosted.com (mx0a-0064b401.pphosted.com [205.220.166.238]) (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 64A5F36134; Fri, 31 May 2024 03:08:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.166.238 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717124888; cv=none; b=TswiXIjgVi/3FdCXLIIYFsFEpQ9jAQdp8UeXTMNmoezkOOkDDx9xruVkSTKLuvcByABGY70CEs/CrrEqkoKMMxz/O3XJXXB4LrGcqTjaJCoLsAlCtnw7/MSMiRiqGGtrQAXk4Nd9bTl7faQWe9VS4eG2JIRKspCBT5L5vJvsMxQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717124888; c=relaxed/simple; bh=YRSUgk6swjRvnBPRLMjfQT2uYJPFNmeIsKM0ICz4PlU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XFoIluQIPdQERnOzP7FNpK3wvdlwpESuenUL9au7FAvhsXUpcZcH0LbEMFniXohKDLBRnw1ztadket32adhvr92BDXPKTalNqHMvuHCB6D/lChj/jV4EAa46I9Yr4Hhu6snmTOQENn/YPEmctZYan9q28sP4WX65MzmQYnd2NZw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=windriver.com; spf=pass smtp.mailfrom=windriver.com; arc=none smtp.client-ip=205.220.166.238 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=windriver.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=windriver.com Received: from pps.filterd (m0250809.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44V2wIL9001103; Thu, 30 May 2024 20:07:50 -0700 Received: from ala-exchng02.corp.ad.wrs.com (ala-exchng02.wrs.com [147.11.82.254]) by mx0a-0064b401.pphosted.com (PPS) with ESMTPS id 3yf5pd80wx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Thu, 30 May 2024 20:07:50 -0700 (PDT) Received: from ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) by ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 30 May 2024 20:07:45 -0700 Received: from pek-lpd-ccm6.wrs.com (147.11.136.210) by ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Thu, 30 May 2024 20:07:41 -0700 From: Lizhi Xu To: CC: , , , , , , , , , , , , , , Subject: [PATCH V2] ext4: add casefolded feature check before setup encrypted info Date: Fri, 31 May 2024 11:07:40 +0800 Message-ID: <20240531030740.1024475-1-lizhi.xu@windriver.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240531010513.GA9629@sol.localdomain> References: <20240531010513.GA9629@sol.localdomain> 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 X-Proofpoint-GUID: yI9wjQvpvni-JHf5Al8qA9yHzSaM7lnS X-Proofpoint-ORIG-GUID: yI9wjQvpvni-JHf5Al8qA9yHzSaM7lnS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-30_21,2024-05-30_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 suspectscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 malwarescore=0 adultscore=0 priorityscore=1501 impostorscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.21.0-2405170001 definitions=main-2405310023 Content-Type: text/plain; charset="utf-8" Due to the current file system not supporting the casefolded feature, only=20 i_crypt_info was initialized when creating encrypted information, without a= ctually setting the sighash. Therefore, when creating an inode, if the system does = not=20 support the casefolded feature, encrypted information will not be created. Reported-by: syzbot+340581ba9dceb7e06fb3@syzkaller.appspotmail.com Signed-off-by: Lizhi Xu --- fs/ext4/ialloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index e9bbb1da2d0a..47b75589fdf4 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -983,7 +983,8 @@ struct inode *__ext4_new_inode(struct mnt_idmap *idmap, ei->i_projid =3D make_kprojid(&init_user_ns, EXT4_DEF_PROJID); =20 if (!(i_flags & EXT4_EA_INODE_FL)) { - err =3D fscrypt_prepare_new_inode(dir, inode, &encrypt); + if (ext4_has_feature_casefold(inode->i_sb)) + err =3D fscrypt_prepare_new_inode(dir, inode, &encrypt); if (err) goto out; } --=20 2.43.0