From: Hangbin Liu liuhangbin@gmail.com
[ Upstream commit 3d0b738fc5adf9f380702ac1424672e4b32c3781 ]
There is one direct accesses to bond->curr_active_slave in bond_miimon_commit(). Protected it by rcu_access_pointer() since the later of this function also use this one.
Signed-off-by: Hangbin Liu liuhangbin@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Stable-dep-of: e95cc44763a4 ("bonding: do failover when high prio link up") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/bonding/bond_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 445c23e424f7..36a8db140388 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2698,7 +2698,7 @@ static void bond_miimon_commit(struct bonding *bond)
bond_miimon_link_change(bond, slave, BOND_LINK_UP);
- if (!bond->curr_active_slave || slave == primary) + if (!rcu_access_pointer(bond->curr_active_slave) || slave == primary) goto do_failover;
continue;