libcli/smb: add missing struct smb2_signing_key allocation in smb2cli_session_set_cha...

This was missing in commit 17e22e020fcb84fb9ddda350915369dc9ea28ef1
and causes all multi-channel tests to segfault.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Jun 11 15:25:56 UTC 2019 on sn-devel-184

diff --git a/libcli/smb/smbXcli_base.c b/libcli/smb/smbXcli_base.c
index e916a17e07a642ab0f22ac8a6dae305937873157..133b961528b9fd4995e336cf17291260e0d5924c 100644 (file)
--- a/libcli/smb/smbXcli_base.c
+++ b/libcli/smb/smbXcli_base.c
@@ -6302,6 +6302,15 @@ NTSTATUS smb2cli_session_set_channel_key(struct smbXcli_session *session,
        memcpy(channel_key, _channel_key.data,
               MIN(_channel_key.length, sizeof(channel_key)));
 
+       session->smb2_channel.signing_key = talloc_zero(session,
+                                                struct smb2_signing_key);
+       if (session->smb2_channel.signing_key == NULL) {
+               ZERO_STRUCT(channel_key);
+               return NT_STATUS_NO_MEMORY;
+       }
+       talloc_set_destructor(session->smb2_channel.signing_key,
+                             smb2_signing_key_destructor);
+
        session->smb2_channel.signing_key->blob =
                data_blob_talloc(session->smb2_channel.signing_key,
                                 channel_key,