From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: ChenXiaoSong <chenxiaosong@kylinos.cn>,
Namjae Jeon <linkinjeon@kernel.org>,
Steve French <stfrench@microsoft.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.18.y 2/8] smb: move create_durable_req_v2 to common/smb2pdu.h
Date: Thu, 5 Nov 2026 12:58:37 -0500 [thread overview]
Message-ID: <20261105175828.2192358-2-sashal@kernel.org> (raw)
In-Reply-To: <20261105175828.2192358-1-sashal@kernel.org>
From: ChenXiaoSong <chenxiaosong@kylinos.cn>
[ Upstream commit 833a75fc9ecc3856a52223d8c245e52703e0a9f1 ]
Modify the following places:
- some fields in "struct create_durable_req_v2" ->
struct durable_context_v2
- durable_context_v2 -> durable_context_v2_req
- create_durable_v2 -> create_durable_req_v2
Then move duplicate definitions to common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: f8171804a39e ("smb: client: fix OOB read of the resume name sent in TRANS2_FIND_NEXT2")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/smb/client/smb2pdu.c | 14 +++++++-------
fs/smb/client/smb2pdu.h | 12 ------------
fs/smb/common/smb2pdu.h | 14 ++++++++++++++
fs/smb/server/smb2pdu.c | 8 ++++----
fs/smb/server/smb2pdu.h | 9 ---------
5 files changed, 25 insertions(+), 32 deletions(-)
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index 6d610f136f43e..436dd661d339c 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -2456,21 +2456,21 @@ add_lease_context(struct TCP_Server_Info *server,
return 0;
}
-static struct create_durable_v2 *
+static struct create_durable_req_v2 *
create_durable_v2_buf(struct cifs_open_parms *oparms)
{
struct cifs_fid *pfid = oparms->fid;
- struct create_durable_v2 *buf;
+ struct create_durable_req_v2 *buf;
- buf = kzalloc(sizeof(struct create_durable_v2), GFP_KERNEL);
+ buf = kzalloc(sizeof(struct create_durable_req_v2), GFP_KERNEL);
if (!buf)
return NULL;
buf->ccontext.DataOffset = cpu_to_le16(offsetof
- (struct create_durable_v2, dcontext));
- buf->ccontext.DataLength = cpu_to_le32(sizeof(struct durable_context_v2));
+ (struct create_durable_req_v2, dcontext));
+ buf->ccontext.DataLength = cpu_to_le32(sizeof(struct durable_context_v2_req));
buf->ccontext.NameOffset = cpu_to_le16(offsetof
- (struct create_durable_v2, Name));
+ (struct create_durable_req_v2, Name));
buf->ccontext.NameLength = cpu_to_le16(4);
/*
@@ -2540,7 +2540,7 @@ add_durable_v2_context(struct kvec *iov, unsigned int *num_iovec,
iov[num].iov_base = create_durable_v2_buf(oparms);
if (iov[num].iov_base == NULL)
return -ENOMEM;
- iov[num].iov_len = sizeof(struct create_durable_v2);
+ iov[num].iov_len = sizeof(struct create_durable_req_v2);
*num_iovec = num + 1;
return 0;
}
diff --git a/fs/smb/client/smb2pdu.h b/fs/smb/client/smb2pdu.h
index de2d83c6463c9..472553e499830 100644
--- a/fs/smb/client/smb2pdu.h
+++ b/fs/smb/client/smb2pdu.h
@@ -137,18 +137,6 @@ struct share_redirect_error_context_rsp {
/* See MS-SMB2 2.2.13.2.11 */
/* Flags */
#define SMB2_DHANDLE_FLAG_PERSISTENT 0x00000002
-struct durable_context_v2 {
- __le32 Timeout;
- __le32 Flags;
- __u64 Reserved;
- __u8 CreateGuid[16];
-} __packed;
-
-struct create_durable_v2 {
- struct create_context_hdr ccontext;
- __u8 Name[8];
- struct durable_context_v2 dcontext;
-} __packed;
/* See MS-SMB2 2.2.13.2.12 */
struct durable_reconnect_context_v2 {
diff --git a/fs/smb/common/smb2pdu.h b/fs/smb/common/smb2pdu.h
index 1bd5835c56e45..ca47c54afd324 100644
--- a/fs/smb/common/smb2pdu.h
+++ b/fs/smb/common/smb2pdu.h
@@ -1290,6 +1290,20 @@ struct create_mxac_req {
__le64 Timestamp;
} __packed;
+/* See MS-SMB2 2.2.13.2.11 */
+struct durable_context_v2_req {
+ __le32 Timeout;
+ __le32 Flags; /* see SMB2_DHANDLE_FLAG_PERSISTENT */
+ __u64 Reserved;
+ __u8 CreateGuid[16];
+} __packed;
+
+struct create_durable_req_v2 {
+ struct create_context_hdr ccontext;
+ __u8 Name[8];
+ struct durable_context_v2_req dcontext;
+} __packed;
+
/* See MS-SMB2 2.2.14.2.5 */
struct create_mxac_rsp {
struct create_context_hdr ccontext;
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 55d634b5d2e2f..9e54b4301106b 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -2908,7 +2908,7 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
durable_v2_blob =
(struct create_durable_req_v2 *)context;
ksmbd_debug(SMB, "Request for durable v2 open\n");
- dh_info->fp = ksmbd_lookup_fd_cguid(durable_v2_blob->CreateGuid);
+ dh_info->fp = ksmbd_lookup_fd_cguid(durable_v2_blob->dcontext.CreateGuid);
if (dh_info->fp) {
if (!memcmp(conn->ClientGUID, dh_info->fp->client_guid,
SMB2_CLIENT_GUID_SIZE)) {
@@ -2933,11 +2933,11 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
if ((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
req_op_level == SMB2_OPLOCK_LEVEL_BATCH) {
dh_info->CreateGuid =
- durable_v2_blob->CreateGuid;
+ durable_v2_blob->dcontext.CreateGuid;
dh_info->persistent =
- le32_to_cpu(durable_v2_blob->Flags);
+ le32_to_cpu(durable_v2_blob->dcontext.Flags);
dh_info->timeout =
- le32_to_cpu(durable_v2_blob->Timeout);
+ le32_to_cpu(durable_v2_blob->dcontext.Timeout);
dh_info->type = dh_idx;
}
break;
diff --git a/fs/smb/server/smb2pdu.h b/fs/smb/server/smb2pdu.h
index 48026edb7314b..189e0d955b4a5 100644
--- a/fs/smb/server/smb2pdu.h
+++ b/fs/smb/server/smb2pdu.h
@@ -66,15 +66,6 @@ struct preauth_integrity_info {
/* Apple Defined Contexts */
#define SMB2_CREATE_AAPL "AAPL"
-struct create_durable_req_v2 {
- struct create_context_hdr ccontext;
- __u8 Name[8];
- __le32 Timeout;
- __le32 Flags;
- __u8 Reserved[8];
- __u8 CreateGuid[16];
-} __packed;
-
#define DURABLE_HANDLE_MAX_TIMEOUT 300000
struct create_durable_reconn_req {
--
2.53.0
next prev parent reply other threads:[~2026-11-05 17:58 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-04 18:38 FAILED: patch "[PATCH] smb: client: fix OOB read of the resume name sent in" failed to apply to 6.18-stable tree gregkh
2026-11-05 17:58 ` [PATCH 6.18.y 1/8] smb: move smb_sockaddr_in and smb_sockaddr_in6 to common/smb2pdu.h Sasha Levin
2026-11-05 17:58 ` Sasha Levin [this message]
2026-11-05 17:58 ` [PATCH 6.18.y 3/8] smb: move create_durable_handle_reconnect_v2 " Sasha Levin
2026-11-05 17:58 ` [PATCH 6.18.y 4/8] smb: move create_durable_rsp_v2 " Sasha Levin
2026-11-05 17:58 ` [PATCH 6.18.y 5/8] smb: move some duplicate definitions " Sasha Levin
2026-11-05 17:58 ` [PATCH 6.18.y 6/8] smb: move list of FileSystemAttributes to common/fscc.h Sasha Levin
2026-11-05 17:58 ` [PATCH 6.18.y 7/8] smb: move some duplicate struct definitions " Sasha Levin
2026-11-05 17:58 ` [PATCH 6.18.y 8/8] smb: client: fix OOB read of the resume name sent in TRANS2_FIND_NEXT2 Sasha Levin
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