Netlink doesn't account skbs to the sending socket, so the there's no
need to orphan the skb before trimming it.
Removing the skb_orphan() call is required for mmap'ed netlink, which uses
a netlink specific skb destructor that must not be invoked before the
final freeing of the skb.
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
net/netlink/af_netlink.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 978a61f..26779c2 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -851,7 +851,7 @@ static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
{
int delta;
- skb_orphan(skb);
+ WARN_ON(skb->sk != NULL);
delta = skb->end - skb->tail;
if (delta * 2 < skb->truesize)
--
1.8.1.4
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