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authorQingfang Deng <dqfext@gmail.com>2025-08-14 09:25:57 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-28 16:31:14 +0200
commitb6be9f91c61ce4f1b489847e762e1ec8dce205fb (patch)
treefe2e0973753da1cc5930dd0e04b131eb1d370b6f
parent53aee4fc347cf9712e6a8a5d4e60822c7dc51656 (diff)
net: ethernet: mtk_ppe: add RCU lock around dev_fill_forward_path
[ 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>
-rw-r--r--drivers/net/ethernet/mediatek/mtk_ppe_offload.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
index c855fb799ce1..e9bd32741983 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;