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* [PATCH v2] netlink: reset skb->peeked when reuse orphan skb for next broadcast
@ 2015-07-10 12:21 Konstantin Khlebnikov
  2015-07-13  8:05 ` Herbert Xu
  0 siblings, 1 reply; 2+ messages in thread
From: Konstantin Khlebnikov @ 2015-07-10 12:21 UTC (permalink / raw)
  To: netdev, David S. Miller; +Cc: Eric Dumazet, Herbert Xu

This patch clears skb->peeked set by previous recipient of broadcast.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: add05ad4e9f5 ("unix/dgram: peek beyond 0-sized skbs")
---
 net/netlink/af_netlink.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 921e0d8dfe3a..f4427f4bf223 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1967,6 +1967,7 @@ static void do_one_broadcast(struct sock *sk,
 			 * delivered to a previous socket.
 			 */
 			skb_orphan(p->skb2);
+			p->skb2->peeked = 0;
 		}
 	}
 	if (p->skb2 == NULL) {

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH v2] netlink: reset skb->peeked when reuse orphan skb for next broadcast
  2015-07-10 12:21 [PATCH v2] netlink: reset skb->peeked when reuse orphan skb for next broadcast Konstantin Khlebnikov
@ 2015-07-13  8:05 ` Herbert Xu
  0 siblings, 0 replies; 2+ messages in thread
From: Herbert Xu @ 2015-07-13  8:05 UTC (permalink / raw)
  To: Konstantin Khlebnikov; +Cc: netdev, David S. Miller, Eric Dumazet

On Fri, Jul 10, 2015 at 03:21:34PM +0300, Konstantin Khlebnikov wrote:
> This patch clears skb->peeked set by previous recipient of broadcast.
> 
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
> Fixes: add05ad4e9f5 ("unix/dgram: peek beyond 0-sized skbs")

Per my earlier email, this patch is not needed if we fix the root
cause.

Thanks,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2015-07-10 12:21 [PATCH v2] netlink: reset skb->peeked when reuse orphan skb for next broadcast Konstantin Khlebnikov
2015-07-13  8:05 ` Herbert Xu

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