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xfrm: Use __skb_queue_tail in xfrm_trans_queue

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We do not need locking in xfrm_trans_queue because it is designed
to use per-CPU buffers.  However, the original code incorrectly
used skb_queue_tail which takes the lock.  This patch switches
it to __skb_queue_tail instead.

Reported-and-tested-by: Artem Savkov <[email protected]>
Fixes: acf568ee85 ("xfrm: Reinject transport-mode packets...")
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Steffen Klassert <[email protected]>
This commit is contained in:
Herbert Xu 2018-01-04 22:25:07 +11:00 • committed by Steffen Klassert
commit d16b46e4fd
1 changed files with 1 additions and 1 deletions
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2
net/xfrm/xfrm_input.c
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@ -518,7 +518,7 @@ int xfrm_trans_queue(struct sk_buff *skb,
return -ENOBUFS;
XFRM_TRANS_SKB_CB(skb)->finish = finish;
skb_queue_tail(&trans->queue, skb);
__skb_queue_tail(&trans->queue, skb);
tasklet_schedule(&trans->tasklet);
return 0;
}