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| author | Jan-Marek Glogowski <glogow@fbihome.de> | 2017-02-20 11:25:58 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-12 10:41:11 (GMT) |
| commit | 8446cb1adf95fd12289865ec9f21c7d877d0be04 (patch) | |
| tree | 82bbfc4930fd592082e11a0494746cf7be9aba8f | |
| parent | 57e1e90dda74f87bef31bcc5eea89f775b7b3c69 (diff) | |
| download | linux-8446cb1adf95fd12289865ec9f21c7d877d0be04.tar.xz | |
Reset TreeId to zero on SMB2 TREE_CONNECT
commit 806a28efe9b78ffae5e2757e1ee924b8e50c08ab upstream.
Currently the cifs module breaks the CIFS specs on reconnect as
described in http://msdn.microsoft.com/en-us/library/cc246529.aspx:
"TreeId (4 bytes): Uniquely identifies the tree connect for the
command. This MUST be 0 for the SMB2 TREE_CONNECT Request."
Signed-off-by: Jan-Marek Glogowski <glogow@fbihome.de>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Tested-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/cifs/smb2pdu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 8745722..bdd3292 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1104,6 +1104,10 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, return -EINVAL; } + /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */ + if (tcon) + tcon->tid = 0; + rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req); if (rc) { kfree(unc_path); |