From 8defffb20854500825162d336bdd183d2d218cf9 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Wed, 7 Sep 2016 17:23:09 +0100 Subject: [PATCH] staging: ks7010: avoid dereferencing packet if it is null Updating tx_bytes from packet->len if packet is null will cause a null pointer dereference, so only update tx_bytes if it packet is not null. Signed-off-by: Colin Ian King Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ks7010/ks_wlan_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/ks7010/ks_wlan_net.c b/drivers/staging/ks7010/ks_wlan_net.c index 1e21eb1c4667..d69b4c945d21 100644 --- a/drivers/staging/ks7010/ks_wlan_net.c +++ b/drivers/staging/ks7010/ks_wlan_net.c @@ -3396,13 +3396,13 @@ void send_packet_complete(void *arg1, void *arg2) DPRINTK(3, "\n"); - priv->nstats.tx_bytes += packet->len; priv->nstats.tx_packets++; if (netif_queue_stopped(priv->net_dev)) netif_wake_queue(priv->net_dev); if (packet) { + priv->nstats.tx_bytes += packet->len; dev_kfree_skb(packet); packet = NULL; } -- 2.30.2