diff options
| author |   Lorenzo Bianconi <lorenzo@kernel.org> | 2022-07-18 11:51:53 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-07-19 17:27:18 -0700 |
| commit | 53eb9b04560cc368b7874a7ef1ca7666741739e4 (patch) | |
| tree | bde4d7c90d5aa9f91b40d3b0b857ca9bcac0042b /drivers | |
| parent | r8152: fix a WOL issue (diff) | |
| download | linux-dev-53eb9b04560cc368b7874a7ef1ca7666741739e4.tar.xz linux-dev-53eb9b04560cc368b7874a7ef1ca7666741739e4.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c index 90e7dfd011c9..5d457bc9acc1 100644 --- 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 *dev, const u8 *addr, struct mtk_wdma_i }; 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)) |