[patch 09/23] [PATCH] [NETFILTER] nf_queue: Fix Ooops when no queue handler registered

From: Chris Wright
Date: Tue Nov 22 2005 - 16:09:23 EST


-stable review patch. If anyone has any objections, please let us know.
------------------

With the new nf_queue generalization in 2.6.14, we've introduced a bug
that causes an oops as soon as a packet is queued but no queue handler
registered. This patch fixes it.

Signed-off-by: Harald Welte <laforge@xxxxxxxxxxxxx>
Signed-off-by: Chris Wright <chrisw@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
net/netfilter/nf_queue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-2.6.14.2.orig/net/netfilter/nf_queue.c
+++ linux-2.6.14.2/net/netfilter/nf_queue.c
@@ -117,7 +117,7 @@ int nf_queue(struct sk_buff **skb,

/* QUEUE == DROP if noone is waiting, to be safe. */
read_lock(&queue_handler_lock);
- if (!queue_handler[pf]->outfn) {
+ if (!queue_handler[pf] || !queue_handler[pf]->outfn) {
read_unlock(&queue_handler_lock);
kfree_skb(*skb);
return 1;

--
-
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