From: Patrick McHardy <kaber@xxxxxxxxx>
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 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index a9f876b..7b9d7d0 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -862,7 +862,7 @@ static inline struct sk_buff *netlink_trim(struct sk_buff *skb,
{
int delta;
- skb_orphan(skb);
+ WARN_ON(skb->sk != NULL);
delta = skb->end - skb->tail;
if (delta * 2 < skb->truesize)
--
1.7.4.4
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