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| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2024-01-17 06:22:20 +0100 |
|---|---|---|
| committer | Simon Wunderlich <sw@simonwunderlich.de> | 2024-01-27 09:13:39 +0100 |
| commit | 0a186b49bba596b81de5a686ce5bfc9cd48ab3ef (patch) | |
| tree | 8576a52697e5b4972d2c5e9576c1a99b3b7f9c56 /net/batman-adv | |
| parent | 59f7ea703c38abc3f239068d49cc8897740e4c54 (diff) | |
| download | linux-stable-0a186b49bba596b81de5a686ce5bfc9cd48ab3ef.tar.gz linux-stable-0a186b49bba596b81de5a686ce5bfc9cd48ab3ef.tar.bz2 linux-stable-0a186b49bba596b81de5a686ce5bfc9cd48ab3ef.zip | |
batman-adv: mcast: fix memory leak on deleting a batman-adv interface
The batman-adv multicast tracker TVLV handler is registered for the
new batman-adv multicast packet type upon creating a batman-adv interface,
but not unregistered again upon the interface's deletion, leading to a
memory leak.
Fix this memory leak by calling the according TVLV handler unregister
routine for the multicast tracker TVLV upon batman-adv interface
deletion.
Fixes: 07afe1ba288c ("batman-adv: mcast: implement multicast packet reception and forwarding")
Reported-and-tested-by: syzbot+ebe64cc5950868e77358@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000beadc4060f0cbc23@google.com/
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv')
| -rw-r--r-- | net/batman-adv/multicast.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index b4f8b4af1722..14088c4ff2f6 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -2175,6 +2175,7 @@ void batadv_mcast_free(struct batadv_priv *bat_priv) cancel_delayed_work_sync(&bat_priv->mcast.work); batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_MCAST, 2); + batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_MCAST_TRACKER, 1); batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_MCAST, 2); /* safely calling outside of worker, as worker was canceled above */ |