nfnetlink_bind request_module()s all the time as nfnetlink_get_subsys()
shifts the argument by 8 to obtain the subsys id.
So using type instead of type << 8 always returns NULL.
Fixes: 03292745b02d11 ("netlink: add nlk->netlink_bind hook for module auto-loading")
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 70277b1..27b93da 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -492,7 +492,7 @@ static int nfnetlink_bind(struct net *net, int group)
type = nfnl_group2type[group];
rcu_read_lock();
- ss = nfnetlink_get_subsys(type);
+ ss = nfnetlink_get_subsys(type << 8);
rcu_read_unlock();
if (!ss)
request_module("nfnetlink-subsys-%d", type);
--
2.0.5
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