diff options
| author | Simon Wunderlich <sw@simonwunderlich.de> | 2014-02-08 16:45:06 +0100 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2014-02-17 17:17:01 +0100 |
| commit | b2262df7fcf2c395eca564df83238e931d88d7bf (patch) | |
| tree | b4d4923237b668091ff9d6b459f575d087c4e7d3 /net/batman-adv | |
| parent | batman-adv: avoid potential race condition when adding a new neighbour (diff) | |
| download | linux-b2262df7fcf2c395eca564df83238e931d88d7bf.tar.xz linux-b2262df7fcf2c395eca564df83238e931d88d7bf.zip | |
batman-adv: fix potential orig_node reference leak
Since batadv_orig_node_new() sets the refcount to two, assuming that
the calling function will use a reference for putting the orig_node into
a hash or similar, both references must be freed if initialization of
the orig_node fails. Otherwise that object may be leaked in that error
case.
Reported-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net/batman-adv')
| -rw-r--r-- | net/batman-adv/bat_iv_ogm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index 094ae7ca50a0..42cbc0a68941 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -254,6 +254,8 @@ batadv_iv_ogm_orig_get(struct batadv_priv *bat_priv, const uint8_t *addr) free_bcast_own: kfree(orig_node->bat_iv.bcast_own); free_orig_node: + /* free twice, as batadv_orig_node_new sets refcount to 2 */ + batadv_orig_node_free_ref(orig_node); batadv_orig_node_free_ref(orig_node); return NULL; |