diff options
| -rw-r--r-- | net/netfilter/nfnetlink_log.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 9d7fec570abe..d923f2cb1398 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -228,13 +228,18 @@ static void __nfulnl_flush(struct nfulnl_instance *inst); static void __instance_destroy(struct nfulnl_instance *inst) { + spin_lock(&inst->lock); + if (inst->copy_mode == NFULNL_COPY_DISABLED) { + /* attempt to UNBIND a queue already pending + * destruction via netlink close event. Ignore. + */ + spin_unlock(&inst->lock); + return; + } + /* first pull it out of the global list */ hlist_del_rcu(&inst->hlist); - /* then flush all pending packets from skb */ - - spin_lock(&inst->lock); - /* lockless readers wont be able to use us */ inst->copy_mode = NFULNL_COPY_DISABLED; |