From: Zhang Shurong zhang_shurong@foxmail.com
[ Upstream commit 3ff256751a2853e1ffaa36958ff933ccc98c6cb5 ]
The netif_rx() function frees the skb so we can't dereference it to save the skb->len.
Signed-off-by: Zhang Shurong zhang_shurong@foxmail.com Link: https://lore.kernel.org/r/tencent_3B3D24B66ED66A6BB73CC0E63C6A14E45109@qq.co... Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/firewire/net.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c index 538bd677c254a..7a4d1a478e33e 100644 --- a/drivers/firewire/net.c +++ b/drivers/firewire/net.c @@ -479,7 +479,7 @@ static int fwnet_finish_incoming_packet(struct net_device *net, struct sk_buff *skb, u16 source_node_id, bool is_broadcast, u16 ether_type) { - int status; + int status, len;
switch (ether_type) { case ETH_P_ARP: @@ -533,13 +533,15 @@ static int fwnet_finish_incoming_packet(struct net_device *net, } skb->protocol = protocol; } + + len = skb->len; status = netif_rx(skb); if (status == NET_RX_DROP) { net->stats.rx_errors++; net->stats.rx_dropped++; } else { net->stats.rx_packets++; - net->stats.rx_bytes += skb->len; + net->stats.rx_bytes += len; }
return 0;