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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

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Steffen Klassert says:

====================
pull request (net): ipsec 2017-08-29

1) Fix dst_entry refcount imbalance when using socket policies.
   From Lorenzo Colitti.

2) Fix locking when adding the ESP trailers.

3) Fix tailroom calculation for the ESP trailer by using
   skb_tailroom instead of skb_availroom.

4) Fix some info leaks in xfrm_user.
   From Mathias Krause.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2017-08-29 09:37:06 -07:00
commit 04f1c4ad72
4 changed files with 13 additions and 8 deletions
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7
net/ipv4/esp4.c
View file

@ -258,7 +258,7 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
esp_output_udp_encap(x, skb, esp);
if (!skb_cloned(skb)) {
if (tailen <= skb_availroom(skb)) {
if (tailen <= skb_tailroom(skb)) {
nfrags = 1;
trailer = skb;
tail = skb_tail_pointer(trailer);
@ -292,8 +292,6 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
kunmap_atomic(vaddr);
spin_unlock_bh(&x->lock);
nfrags = skb_shinfo(skb)->nr_frags;
__skb_fill_page_desc(skb, nfrags, page, pfrag->offset,
@ -301,6 +299,9 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
skb_shinfo(skb)->nr_frags = ++nfrags;
pfrag->offset = pfrag->offset + allocsize;
spin_unlock_bh(&x->lock);
nfrags++;
skb->len += tailen;