This is a note to let you know that I've just added the patch titled
af_iucv: wrong mapping of sent and confirmed skbs
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
af_iucv-wrong-mapping-of-sent-and-confirmed-skbs.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f5738e2ef88070ef1372e6e718124d88e9abe4ac Mon Sep 17 00:00:00 2001
From: Ursula Braun <ursula.braun@xxxxxxxxxx>
Date: Tue, 13 May 2014 14:38:02 +0200
Subject: af_iucv: wrong mapping of sent and confirmed skbs
From: Ursula Braun <ursula.braun@xxxxxxxxxx>
commit f5738e2ef88070ef1372e6e718124d88e9abe4ac upstream.
When sending data through IUCV a MESSAGE COMPLETE interrupt
signals that sent data memory can be freed or reused again.
With commit f9c41a62bba3f3f7ef3541b2a025e3371bcbba97
"af_iucv: fix recvmsg by replacing skb_pull() function" the
MESSAGE COMPLETE callback iucv_callback_txdone() identifies
the wrong skb as being confirmed, which leads to data corruption.
This patch fixes the skb mapping logic in iucv_callback_txdone().
Signed-off-by: Ursula Braun <ursula.braun@xxxxxxxxxx>
Signed-off-by: Frank Blaschka <frank.blaschka@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/iucv/af_iucv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1829,7 +1829,7 @@ static void iucv_callback_txdone(struct
spin_lock_irqsave(&list->lock, flags);
while (list_skb != (struct sk_buff *)list) {
- if (msg->tag != IUCV_SKB_CB(list_skb)->tag) {
+ if (msg->tag == IUCV_SKB_CB(list_skb)->tag) {
this = list_skb;
break;
}
Patches currently in stable-queue which might be from ursula.braun@xxxxxxxxxx are
queue-3.14/af_iucv-wrong-mapping-of-sent-and-confirmed-skbs.patch
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