diff --git a/mesh/test/mttest/mttest.c b/mesh/test/mttest/mttest.c
index 4092f14..d44f8d5 100644
--- a/mesh/test/mttest/mttest.c
+++ b/mesh/test/mttest/mttest.c
@@ -106,6 +106,7 @@ static void free_current_test(void)
 
     pthread_cond_destroy(&m_test_ready_cond);
     pthread_mutex_destroy(&m_test_ready_mutex);
+    free(mp_current_test->p_rand_states);
     free(mp_current_test->p_threads);
     free(mp_current_test);
     mp_current_test = NULL;
diff --git a/mesh/test/src/ut_access.c b/mesh/test/src/ut_access.c
index 0342ebf..1ed1a14 100644
--- a/mesh/test/src/ut_access.c
+++ b/mesh/test/src/ut_access.c
@@ -403,7 +403,7 @@ static void evt_handler_add_stub(nrf_mesh_evt_handler_t * p_evt_handler, int num
 
 static const void * dsm_flash_area_get_stub(int num_calls)
 {
-    return (void*) PAGE_SIZE;
+    return (const void *) (PAGE_SIZE * 10);
 }
 
 static void flash_manager_mem_listener_register_stub(fm_mem_listener_t * p_listener, int num_calls)
diff --git a/mesh/test/src/ut_transport.c b/mesh/test/src/ut_transport.c
index 4902741..05def8b 100644
--- a/mesh/test/src/ut_transport.c
+++ b/mesh/test/src/ut_transport.c
@@ -326,7 +326,7 @@ void test_duplicate_sar_tx(void)
     expect_init();
     transport_init(NULL);
     nrf_mesh_network_secmat_t net_secmat;
-    nrf_mesh_application_secmat_t app_secmat;
+    nrf_mesh_application_secmat_t app_secmat = {0};
 
     uint8_t buffer[PACKET_MESH_TRS_SEG_ACCESS_PDU_MAX_SIZE - PACKET_MESH_TRS_TRANSMIC_SMALL_SIZE];
 
diff --git a/mesh/test/src/ut_transport_lpn.c b/mesh/test/src/ut_transport_lpn.c
index cdc13ee..ba2de64 100644
--- a/mesh/test/src/ut_transport_lpn.c
+++ b/mesh/test/src/ut_transport_lpn.c
@@ -737,6 +737,17 @@ void test_sar_always_room_for_an_rx_in_friendship(void)
     decrypt_Expect();
 
     TEST_ASSERT_EQUAL(NRF_SUCCESS, transport_packet_in(&packet, sizeof(packet.pdu), &net_metadata, &rx_metadata));
+
+    /* Cleanup TX contexts by acking all of them */
+
+    for (uint32_t i = 0; i < TRANSPORT_SAR_SESSIONS_MAX-1; ++i)
+    {
+        /* ACK segment -> successful TX. */
+        event_handle_StubWithCallback(event_handle_stub);
+        m_expected_evt.type = NRF_MESH_EVT_TX_COMPLETE;
+        sar_tx_ctx_free_Expect();
+        segack_receive(SEQZERO + i*2, 0x03);
+    }
 }
 
 /*****************************************************************************