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| author | Sven Eckelmann <sven.eckelmann@gmx.de> | 2010-09-18 21:01:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-20 16:29:50 -0700 |
| commit | 399fb5b445370ddcc93221e339d02736f55b9bb8 (patch) | |
| tree | 41fc189a84140a726c5b88b79fc51ebaf9b60099 /lib/bcd.c | |
| parent | 47f621dddc0b5ce3be4592a58e5f73707a83ad41 (diff) | |
Staging: batman-adv: count batman_if list queries as reference
The return of get_batman_if_by_netdev and get_active_batman_if leaks a
pointer from the rcu protected list of interfaces. We must protect it to
prevent a too early release of the memory. Those functions must increase
the reference counter before rcu_read_unlock or it may be to late to
prevent a free.
hardif_add_interface must also increase the reference count for the
returned batman_if to make the behaviour consistent.
Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/bcd.c')
0 files changed, 0 insertions, 0 deletions