port_switchdev_event() does not check that the target network device is
actually backed by the ethsw driver, this could be problematic in a
stacked environment case.
Fixes: 44baaa43d7cc ("staging: fsl-dpaa2/ethsw: Add Freescale DPAA2 Ethernet
Switch driver")
Signed-off-by: Florian Fainelli <[email protected]>
---
drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index daabaceeea52..2edd82f5229a 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -1047,6 +1047,9 @@ static int port_switchdev_event(struct notifier_block
*unused,
struct ethsw_switchdev_event_work *switchdev_work;
struct switchdev_notifier_fdb_info *fdb_info = ptr;
+ if (!ethsw_port_dev_check(dev))
+ return NOTIFY_DONE;
+
switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
if (!switchdev_work)
return NOTIFY_BAD;
--
2.17.1
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