5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>
[ Upstream commit 95c90e4ad89d493a7a14fa200082e466e2548f9d ]
We must check if there is an active slave before dereferencing the pointer.
Fixes: 18cb261afd7b ("bonding: support hardware encryption offload to slaves")
Signed-off-by: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>
Reviewed-by: Hangbin Liu <liuhangbin@xxxxxxxxx>
Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/bonding/bond_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 61ff4bb22e647..177c90e9a4685 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -597,6 +597,8 @@ static bool bond_ipsec_offload_ok(struct sk_buff *skb, struct xfrm_state *xs)
bond = netdev_priv(bond_dev);
rcu_read_lock();
curr_active = rcu_dereference(bond->curr_active_slave);
+ if (!curr_active)
+ goto out;
real_dev = curr_active->dev;
if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP)
--
2.43.0
