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batman-adv: fix tt_local_reset_flags() function

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commit 3190126451 upstream.

Currently the counter of tt_local_entry structures (tt_local_num) is incremented
each time the tt_local_reset_flags() is invoked causing the node to send wrong
TT_REPONSE packets containing a copy of non-initialised memory thus corrupting
other nodes global translation table and making higher level communication
impossible.

Reported-by: Junkeun Song <jun361@gmail.com>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Acked-by: Junkeun Song <jun361@gmail.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Antonio Quartulli
2011-10-16 18:53:37 +02:00
committed by Greg Kroah-Hartman
parent 89c5922631
commit bde860c48a
1 changed files with 2 additions and 0 deletions
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2
net/batman-adv/translation-table.c
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@@ -1668,6 +1668,8 @@ static void tt_local_reset_flags(struct bat_priv *bat_priv, uint16_t flags)
rcu_read_lock();
hlist_for_each_entry_rcu(tt_local_entry, node,
head, hash_entry) {
if (!(tt_local_entry->flags & flags))
continue;
tt_local_entry->flags &= ~flags;
atomic_inc(&bat_priv->num_local_tt);
}