Here are five possible patches for the CWE-190 vulnerability at line 13:

Patch 1: Add a check for integer overflow
```c
13     if (ticks_from_now > 0 && ble_npl_time_get() > UINT32_MAX - ticks_from_now) {
14         // Handle overflow error
15         return;
16     }
17     abs_time = ble_npl_time_get() + ticks_from_now;
```

Patch 2: Use a safer addition function
```c
13     if (ble_npl_time_add_safe(ble_npl_time_get(), ticks_from_now, &abs_time) != 0) {
14         // Handle error
15         return;
16     }
```

Patch 3: Use 64-bit arithmetic to prevent overflow
```c
13     uint64_t abs_time_64 = (uint64_t)ble_npl_time_get() + (uint64_t)ticks_from_now;
14     if (abs_time_64 > UINT32_MAX) {
15         // Handle overflow error
16         return;
17     }
18     abs_time = (ble_npl_time_t)abs_time_64;
```

Patch 4: Limit the maximum value of ticks_from_now
```c
2 #define MAX_TICKS_FROM_NOW (UINT32_MAX / 2)
3 static void
4 ble_hs_timer_sched(int32_t ticks_from_now)
5 {
6     ble_npl_time_t abs_time;
7 
8     if (ticks_from_now == BLE_HS_FOREVER) {
9         return;
10     }
11 
12     if (ticks_from_now > MAX_TICKS_FROM_NOW) {
13         ticks_from_now = MAX_TICKS_FROM_NOW;
14     }
15     abs_time = ble_npl_time_get() + ticks_from_now;
```

Patch 5: Use a saturating add function
```c
13     abs_time = ble_npl_time_get();
14     if (__builtin_add_overflow(abs_time, ticks_from_now, &abs_time)) {
15         abs_time = UINT32_MAX;
16     }
```