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    Subject[PATCH 4.17 36/70] smb3: on reconnect set PreviousSessionId field
    Date
    4.17-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Steve French <stfrench@microsoft.com>

    commit b2adf22fdfba85a6701c481faccdbbb3a418ccfc upstream.

    The server detects reconnect by the (non-zero) value in PreviousSessionId
    of SMB2/SMB3 SessionSetup request, but this behavior regressed due
    to commit 166cea4dc3a4f66f020cfb9286225ecd228ab61d
    ("SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup")

    CC: Stable <stable@vger.kernel.org>
    CC: Sachin Prabhu <sprabhu@redhat.com>
    Signed-off-by: Steve French <smfrench@gmail.com>
    Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    fs/cifs/smb2pdu.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/fs/cifs/smb2pdu.c
    +++ b/fs/cifs/smb2pdu.c
    @@ -1276,6 +1276,7 @@ SMB2_sess_setup(const unsigned int xid,
    sess_data->ses = ses;
    sess_data->buf0_type = CIFS_NO_BUFFER;
    sess_data->nls_cp = (struct nls_table *) nls_cp;
    + sess_data->previous_session = ses->Suid;

    #ifdef CONFIG_CIFS_SMB311
    /*

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