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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 2017-10-09

1) Fix some error paths of the IPsec offloading API.

2) Fix a NULL pointer dereference when IPsec is used
   with vti. From Alexey Kodanev.

3) Don't call xfrm_policy_cache_flush under xfrm_state_lock,
   it triggers several locking warnings. From Artem Savkov.

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

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-10-09 09:43:34 -07:00
commit 93b03193c6
4 changed files with 8 additions and 4 deletions
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1
net/xfrm/xfrm_device.c
View file

@ -91,6 +91,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
}
if (!dev->xfrmdev_ops || !dev->xfrmdev_ops->xdo_dev_state_add) {
xso->dev = NULL;
dev_put(dev);
return 0;
}

6
net/xfrm/xfrm_input.c
View file

@ -429,7 +429,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
nf_reset(skb);
if (decaps) {
skb->sp->olen = 0;
if (skb->sp)
skb->sp->olen = 0;
skb_dst_drop(skb);
gro_cells_receive(&gro_cells, skb);
return 0;
@ -440,7 +441,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
err = x->inner_mode->afinfo->transport_finish(skb, xfrm_gro || async);
if (xfrm_gro) {
skb->sp->olen = 0;
if (skb->sp)
skb->sp->olen = 0;
skb_dst_drop(skb);
gro_cells_receive(&gro_cells, skb);
return err;

4
net/xfrm/xfrm_state.c
View file

@ -732,12 +732,12 @@ int xfrm_state_flush(struct net *net, u8 proto, bool task_valid)
}
}
}
out:
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
if (cnt) {
err = 0;
xfrm_policy_cache_flush();
}
out:
spin_unlock_bh(&net->xfrm.xfrm_state_lock);
return err;
}
EXPORT_SYMBOL(xfrm_state_flush);

1
net/xfrm/xfrm_user.c
View file

@ -657,6 +657,7 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err < 0) {
x->km.state = XFRM_STATE_DEAD;
xfrm_dev_state_delete(x);
__xfrm_state_put(x);
goto out;
}