From: Namjae Jeon <linkinjeon@kernel.org>
To: sashal@kernel.org, gregkh@linuxfoundation.org, stable@vger.kernel.org
Cc: smfrench@gmail.com, Namjae Jeon <linkinjeon@kernel.org>,
Steve French <stfrench@microsoft.com>
Subject: [PATCH v2 5.15.y 8/8] ksmbd: fix wrong allocation size update in smb2_open()
Date: Wed, 27 Dec 2023 19:26:05 +0900 [thread overview]
Message-ID: <20231227102605.4766-9-linkinjeon@kernel.org> (raw)
In-Reply-To: <20231227102605.4766-1-linkinjeon@kernel.org>
[ Upstream commit a9f106c765c12d2f58aa33431bd8ce8e9d8a404a ]
When client send SMB2_CREATE_ALLOCATION_SIZE create context, ksmbd update
old size to ->AllocationSize in smb2 create response. ksmbd_vfs_getattr()
should be called after it to get updated stat result.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
---
fs/ksmbd/smb2pdu.c | 36 ++++++++++++++++++------------------
1 file changed, 18 insertions(+), 18 deletions(-)
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index e1c640ed7acc..8875c04e8382 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -2516,7 +2516,7 @@ static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *
da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME |
XATTR_DOSINFO_ITIME;
- rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_user_ns(path->mnt), path, &da, false);
+ rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_user_ns(path->mnt), path, &da, true);
if (rc)
ksmbd_debug(SMB, "failed to store file attribute into xattr\n");
}
@@ -3182,23 +3182,6 @@ int smb2_open(struct ksmbd_work *work)
goto err_out;
}
- rc = ksmbd_vfs_getattr(&path, &stat);
- if (rc)
- goto err_out;
-
- if (stat.result_mask & STATX_BTIME)
- fp->create_time = ksmbd_UnixTimeToNT(stat.btime);
- else
- fp->create_time = ksmbd_UnixTimeToNT(stat.ctime);
- if (req->FileAttributes || fp->f_ci->m_fattr == 0)
- fp->f_ci->m_fattr =
- cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes)));
-
- if (!created)
- smb2_update_xattrs(tcon, &path, fp);
- else
- smb2_new_xattrs(tcon, &path, fp);
-
if (file_present || created)
ksmbd_vfs_kern_path_unlock(&parent_path, &path);
@@ -3299,6 +3282,23 @@ int smb2_open(struct ksmbd_work *work)
}
}
+ rc = ksmbd_vfs_getattr(&path, &stat);
+ if (rc)
+ goto err_out1;
+
+ if (stat.result_mask & STATX_BTIME)
+ fp->create_time = ksmbd_UnixTimeToNT(stat.btime);
+ else
+ fp->create_time = ksmbd_UnixTimeToNT(stat.ctime);
+ if (req->FileAttributes || fp->f_ci->m_fattr == 0)
+ fp->f_ci->m_fattr =
+ cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes)));
+
+ if (!created)
+ smb2_update_xattrs(tcon, &path, fp);
+ else
+ smb2_new_xattrs(tcon, &path, fp);
+
memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);
rsp->StructureSize = cpu_to_le16(89);
--
2.25.1
next prev parent reply other threads:[~2023-12-27 10:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-27 10:25 [PATCH v2 5.15.y 0/8] Additional ksmbd backport patches for linux-5.15.y Namjae Jeon
2023-12-27 10:25 ` [PATCH v2 5.15.y 1/8] ksmbd: have a dependency on cifs ARC4 Namjae Jeon
2023-12-27 10:25 ` [PATCH v2 5.15.y 2/8] ksmbd: set epoch in create context v2 lease Namjae Jeon
2023-12-27 10:26 ` [PATCH v2 5.15.y 3/8] ksmbd: set v2 lease capability Namjae Jeon
2023-12-27 10:26 ` [PATCH v2 5.15.y 4/8] ksmbd: downgrade RWH lease caching state to RH for directory Namjae Jeon
2023-12-27 10:26 ` [PATCH v2 5.15.y 5/8] ksmbd: send v2 lease break notification " Namjae Jeon
2023-12-27 10:26 ` [PATCH v2 5.15.y 6/8] ksmbd: lazy v2 lease break on smb2_write() Namjae Jeon
2023-12-27 10:26 ` [PATCH v2 5.15.y 7/8] ksmbd: avoid duplicate opinfo_put() call on error of smb21_lease_break_ack() Namjae Jeon
2023-12-27 10:26 ` Namjae Jeon [this message]
2023-12-30 11:04 ` [PATCH v2 5.15.y 0/8] Additional ksmbd backport patches for linux-5.15.y Greg KH
2023-12-30 13:53 ` Namjae Jeon
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