6.6-stable review patch. If anyone has any objections, please let me know.
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From: Qingfang Deng dqfext@gmail.com
[ Upstream commit 62c30c544359aa18b8fb2734166467a07d435c2d ]
Ensure ndo_fill_forward_path() is called with RCU lock held.
Fixes: 2830e314778d ("net: ethernet: mtk-ppe: fix traffic offload with bridged wlan") Signed-off-by: Qingfang Deng dqfext@gmail.com Link: https://patch.msgid.link/20250814012559.3705-1-dqfext@gmail.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c index 889fd26843e6..11e16c9e4e92 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c @@ -101,7 +101,9 @@ mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_i if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED)) return -1;
+ rcu_read_lock(); err = dev_fill_forward_path(dev, addr, &stack); + rcu_read_unlock(); if (err) return err;