Bluetooth: 6lowpan: use after free in disconnect_devices()
This was accidentally changed from list_for_each_entry_safe() to
list_for_each_entry() so now it has a use after free bug. I've changed
it back.
Fixes: 9030582963
('Bluetooth: 6lowpan: Converting rwlocks to use RCU')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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@ -1383,7 +1383,7 @@ static const struct file_operations lowpan_control_fops = {
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static void disconnect_devices(void)
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{
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struct lowpan_dev *entry, *new_dev;
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struct lowpan_dev *entry, *tmp, *new_dev;
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struct list_head devices;
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INIT_LIST_HEAD(&devices);
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@ -1408,7 +1408,7 @@ static void disconnect_devices(void)
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rcu_read_unlock();
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list_for_each_entry(entry, &devices, list) {
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list_for_each_entry_safe(entry, tmp, &devices, list) {
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ifdown(entry->netdev);
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BT_DBG("Unregistering netdev %s %p",
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entry->netdev->name, entry->netdev);
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