diff options
-rw-r--r-- | openbsc/src/libmsc/transaction.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/openbsc/src/libmsc/transaction.c b/openbsc/src/libmsc/transaction.c index dba4bed17..4b46e22ae 100644 --- a/openbsc/src/libmsc/transaction.c +++ b/openbsc/src/libmsc/transaction.c @@ -70,6 +70,13 @@ struct gsm_trans *trans_alloc(struct gsm_network *net, DEBUGP(DCC, "subscr=%p, net=%p\n", subscr, net); + /* a valid subscriber is indispensable */ + if (subscr == NULL) { + LOGP(DCC, LOGL_NOTICE, + "unable to alloc transaction, invalid subscriber (NULL)\n"); + return NULL; + } + trans = talloc_zero(tall_trans_ctx, struct gsm_trans); if (!trans) return NULL; |