Commit 748085fc authored by Patrick McHardy's avatar Patrick McHardy Committed by David S. Miller

netfilter: ctnetlink: fix scheduling while atomic

Caused by call to request_module() while holding nf_conntrack_lock.
Reported-and-tested-by: default avatarKövesdi György <kgy@teledigit.hu>
Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 37fe4732
......@@ -831,13 +831,16 @@ ctnetlink_parse_nat_setup(struct nf_conn *ct,
if (!parse_nat_setup) {
#ifdef CONFIG_MODULES
rcu_read_unlock();
spin_unlock_bh(&nf_conntrack_lock);
nfnl_unlock();
if (request_module("nf-nat-ipv4") < 0) {
nfnl_lock();
spin_lock_bh(&nf_conntrack_lock);
rcu_read_lock();
return -EOPNOTSUPP;
}
nfnl_lock();
spin_lock_bh(&nf_conntrack_lock);
rcu_read_lock();
if (nfnetlink_parse_nat_setup_hook)
return -EAGAIN;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment