The skb is delivered to netif_rx() in rtllib_monitor_rx(), which may free it,
after calling this, dereferencing skb may trigger use-after-free.
Found by Smatch.
Fixes: 94a799425eee ("From: wlanfae <wlanfae@xxxxxxxxxxx> [PATCH 1/8] rtl8192e: Import new version of driver from realtek")
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
drivers/staging/rtl8192e/rtllib_rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 6a0f5bbb99ef..f8965afab767 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -1489,9 +1489,9 @@ static int rtllib_rx_Monitor(struct rtllib_device *ieee, struct sk_buff *skb,
hdrlen += 4;
}
- rtllib_monitor_rx(ieee, skb, rx_stats, hdrlen);
ieee->stats.rx_packets++;
ieee->stats.rx_bytes += skb->len;
+ rtllib_monitor_rx(ieee, skb, rx_stats, hdrlen);
return 1;
}
--
2.17.1
