netdev - Re: [PATCH net v2 0/9] net: fix bonding ipsec offload problems

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Date:   Wed, 14 Jul 2021 15:00:34 -0700
From:   Jay Vosburgh <jay.vosburgh@...onical.com>
To:     Taehee Yoo <ap420073@...il.com>
cc:     davem@...emloft.net, kuba@...nel.org, dsahern@...nel.org,
        netdev@...r.kernel.org, vfalico@...il.com, andy@...yhouse.net,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        jarod@...hat.com, intel-wired-lan@...ts.osuosl.org
Subject: Re: [PATCH net v2 0/9] net: fix bonding ipsec offload problems

Taehee Yoo <ap420073@...il.com> wrote:

>This series fixes some problems related to bonding ipsec offload.
>
>The 1, 5, and 8th patches are to add a missing rcu_read_lock().
>The 2nd patch is to add null check code to bond_ipsec_add_sa.
>When bonding interface doesn't have an active real interface, the
>bond->curr_active_slave pointer is null.
>But bond_ipsec_add_sa() uses that pointer without null check.
>So that it results in null-ptr-deref.
>The 3 and 4th patches are to replace xs->xso.dev with xs->xso.real_dev.
>The 6th patch is to disallow to set ipsec offload if a real interface
>type is bonding.
>The 7th patch is to add struct bond_ipsec to manage SA.
>If bond mode is changed, or active real interface is changed, SA should
>be removed from old current active real interface then it should be added
>to new active real interface.
>But it can't, because it doesn't manage SA.
>The 9th patch is to fix incorrect return value of bond_ipsec_offload_ok().
>
>v1 -> v2:
> - Add 9th patch.
> - Do not print warning when there is no SA in bond_ipsec_add_sa_all().
> - Add comment for ipsec_lock.
>
>Taehee Yoo (9):
>  bonding: fix suspicious RCU usage in bond_ipsec_add_sa()
>  bonding: fix null dereference in bond_ipsec_add_sa()
>  net: netdevsim: use xso.real_dev instead of xso.dev in callback
>    functions of struct xfrmdev_ops
>  ixgbevf: use xso.real_dev instead of xso.dev in callback functions of
>    struct xfrmdev_ops
>  bonding: fix suspicious RCU usage in bond_ipsec_del_sa()
>  bonding: disallow setting nested bonding + ipsec offload
>  bonding: Add struct bond_ipesc to manage SA
>  bonding: fix suspicious RCU usage in bond_ipsec_offload_ok()
>  bonding: fix incorrect return value of bond_ipsec_offload_ok()
>
> drivers/net/bonding/bond_main.c            | 181 +++++++++++++++++----
> drivers/net/ethernet/intel/ixgbevf/ipsec.c |  20 ++-
> drivers/net/netdevsim/ipsec.c              |   8 +-
> include/net/bonding.h                      |   9 +-
> 4 files changed, 178 insertions(+), 40 deletions(-)

	The bonding portion looks good to me.

Acked-by: Jay Vosburgh <jay.vosburgh@...onical.com>

	-J

---
	-Jay Vosburgh, jay.vosburgh@...onical.com