blob: fc6e2464688cc39e49fa705c723c8731605edb3e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 18 Jul 2022 11:51:53 +0200
Subject: [PATCH] net: ethernet: mtk_ppe: fix possible NULL pointer dereference
in mtk_flow_get_wdma_info
odev pointer can be NULL in mtk_flow_offload_replace routine according
to the flower action rules. Fix possible NULL pointer dereference in
mtk_flow_get_wdma_info.
Fixes: a333215e10cb5 ("net: ethernet: mtk_eth_soc: implement flow offloading to WED devices")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/4e1685bc4976e21e364055f6bee86261f8f9ee93.1658137753.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -93,6 +93,9 @@ mtk_flow_get_wdma_info(struct net_device
};
struct net_device_path path = {};
+ if (!ctx.dev)
+ return -ENODEV;
+
memcpy(ctx.daddr, addr, sizeof(ctx.daddr));
if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED))
|
