Patch "CIFS: Fix wrong filename length for SMB2" has been added to the 3.14-stable tree

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This is a note to let you know that I've just added the patch titled

    CIFS: Fix wrong filename length for SMB2

to the 3.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     cifs-fix-wrong-filename-length-for-smb2.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 1bbe4997b13de903c421c1cc78440e544b5f9064 Mon Sep 17 00:00:00 2001
From: Pavel Shilovsky <pshilovsky@xxxxxxxxx>
Date: Fri, 22 Aug 2014 13:32:11 +0400
Subject: CIFS: Fix wrong filename length for SMB2

From: Pavel Shilovsky <pshilovsky@xxxxxxxxx>

commit 1bbe4997b13de903c421c1cc78440e544b5f9064 upstream.

The existing code uses the old MAX_NAME constant. This causes
XFS test generic/013 to fail. Fix it by replacing MAX_NAME with
PATH_MAX that SMB1 uses. Also remove an unused MAX_NAME constant
definition.

Signed-off-by: Pavel Shilovsky <pshilovsky@xxxxxxxxx>
Signed-off-by: Steve French <smfrench@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/cifs/cifsglob.h  |    5 -----
 fs/cifs/smb2file.c  |    2 +-
 fs/cifs/smb2inode.c |    2 +-
 fs/cifs/smb2ops.c   |    2 +-
 fs/cifs/smb2pdu.c   |    2 +-
 5 files changed, 4 insertions(+), 9 deletions(-)

--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -70,11 +70,6 @@
 #define SERVER_NAME_LENGTH 40
 #define SERVER_NAME_LEN_WITH_NULL     (SERVER_NAME_LENGTH + 1)
 
-/* used to define string lengths for reversing unicode strings */
-/*         (256+1)*2 = 514                                     */
-/*           (max path length + 1 for null) * 2 for unicode    */
-#define MAX_NAME 514
-
 /* SMB echo "timeout" -- FIXME: tunable? */
 #define SMB_ECHO_INTERVAL (60 * HZ)
 
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -50,7 +50,7 @@ smb2_open_file(const unsigned int xid, s
 		goto out;
 	}
 
-	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
 			    GFP_KERNEL);
 	if (smb2_data == NULL) {
 		rc = -ENOMEM;
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -131,7 +131,7 @@ smb2_query_path_info(const unsigned int
 	*adjust_tz = false;
 	*symlink = false;
 
-	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
 			    GFP_KERNEL);
 	if (smb2_data == NULL)
 		return -ENOMEM;
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -339,7 +339,7 @@ smb2_query_file_info(const unsigned int
 	int rc;
 	struct smb2_file_all_info *smb2_data;
 
-	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
 			    GFP_KERNEL);
 	if (smb2_data == NULL)
 		return -ENOMEM;
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1540,7 +1540,7 @@ SMB2_query_info(const unsigned int xid,
 {
 	return query_info(xid, tcon, persistent_fid, volatile_fid,
 			  FILE_ALL_INFORMATION,
-			  sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+			  sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
 			  sizeof(struct smb2_file_all_info), data);
 }
 


Patches currently in stable-queue which might be from pshilovsky@xxxxxxxxx are

queue-3.14/cifs-fix-wrong-restart-readdir-for-smb1.patch
queue-3.14/cifs-fix-directory-rename-error.patch
queue-3.14/cifs-fix-async-reading-on-reconnects.patch
queue-3.14/cifs-fix-wrong-directory-attributes-after-rename.patch
queue-3.14/cifs-fix-wrong-filename-length-for-smb2.patch
queue-3.14/cifs-fix-status_cannot_delete-error-mapping-for-smb2.patch
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