From: Lorenzo Bianconi Date: Tue, 12 Sep 2023 08:28:00 +0000 (+0200) Subject: net: ethernet: mtk_wed: check update_wo_rx_stats in mtk_wed_update_rx_stats() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=486e6ca6b48d68d7fefc99e15cc1865e2210d893;p=linux.git net: ethernet: mtk_wed: check update_wo_rx_stats in mtk_wed_update_rx_stats() Check if update_wo_rx_stats function pointer is properly set in mtk_wed_update_rx_stats routine before accessing it. Signed-off-by: Lorenzo Bianconi Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/b0d233386e059bccb59f18f69afb79a7806e5ded.1694507226.git.lorenzo@kernel.org Signed-off-by: Paolo Abeni --- diff --git a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c index 071ed3dea860d..72bcdaed12a94 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c +++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c @@ -68,6 +68,9 @@ mtk_wed_update_rx_stats(struct mtk_wed_device *wed, struct sk_buff *skb) struct mtk_wed_wo_rx_stats *stats; int i; + if (!wed->wlan.update_wo_rx_stats) + return; + if (count * sizeof(*stats) > skb->len - sizeof(u32)) return;