diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-09-17 13:37:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-22 14:43:18 -0700 |
| commit | cc2cc007bc8307f0f8f6e6686af2835d8fd0eecd (patch) | |
| tree | a70a65c4b4a87a4fe6385049dfa0f0c41d912f33 | |
| parent | a251cb2078af1e3be62847547746bf13f75c6d90 (diff) | |
netfilter: nf_log: wait for rcu grace after logger unregistration
commit ad5001cc7cdf9aaee5eb213fdee657e4a3c94776 upstream.
The nf_log_unregister() function needs to call synchronize_rcu() to make sure
that the objects are not dereferenced anymore on module removal.
Fixes: 5962815a6a56 ("netfilter: nf_log: use an array of loggers instead of list")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/netfilter/nf_log.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index 675d12c69e32..3fa4f47c34c8 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -113,6 +113,7 @@ void nf_log_unregister(struct nf_logger *logger) for (i = 0; i < NFPROTO_NUMPROTO; i++) RCU_INIT_POINTER(loggers[i][logger->type], NULL); mutex_unlock(&nf_log_mutex); + synchronize_rcu(); } EXPORT_SYMBOL(nf_log_unregister); |