Thread (2 messages) flat view 2 messages, 2 authors, 2021-09-01

Re: [PATCH 5.4.y] net: dsa: mt7530: fix VLAN traffic leaks again

From: Greg KH <hidden>
Date: 2021-09-01 09:29:09
Also in: linux-arm-kernel, linux-mediatek, lkml, stable

On Mon, Aug 23, 2021 at 03:09:27PM +0800, DENG Qingfang wrote:
[ Upstream commit 7428022b50d0fbb4846dd0f00639ea09d36dff02 ]

When a port leaves a VLAN-aware bridge, the current code does not clear
other ports' matrix field bit. If the bridge is later set to VLAN-unaware
mode, traffic in the bridge may leak to that port.

Remove the VLAN filtering check in mt7530_port_bridge_leave.

Fixes: 4fe4e1f48ba1 ("net: dsa: mt7530: fix VLAN traffic leaks")
Fixes: 83163f7dca56 ("net: dsa: mediatek: add VLAN support for MT7530")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mt7530.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
Now queued up, thanks.

greg k-h
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