Step 1: 
Sure, here are five possible patches for the vulnerability:

Patch 1:
```diff
@@ -130,6 +130,7 @@ static void bus_reset_work(struct work_struct *work)
 ohci->generation = generation;
 reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);

+if (self_id_count == 0 && !is_new_root) {
     ohci->generation = -1; /* prevent AT packet queueing */
 }
```

Patch 2:
```diff
@@ -130,6 +130,7 @@ static void bus_reset_work(struct work_struct *work)
 ohci->generation = generation;
 reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);

+if (self_id_count == 0 && !is_new_root) {
     ohci->node_id = -1; /* prevent AT packet queueing */
 }
```

Patch 3:
```diff
@@ -130,6 +130,7 @@ static void bus_reset_work(struct work_struct *work)
 ohci->generation = generation;
 reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);

+if (self_id_count == 0 && !is_new_root) {
     ohci->self_id_buffer[0] = -1; /* prevent AT packet queueing */
 }
```

Patch 4:
```diff
@@ -130,6 +130,7 @@ static void bus_reset_work(struct work_struct *work)
 ohci->generation = generation;
 reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);

+if (self_id_count == 0 && !is_new_root) {
     ohci->quirks |= QUIRK_PREVENT_AT_PACKETS;
 }
```