staging: rtl8192u: Add null check in rtl8192_usb_initendpoints

There is an allocation for priv->rx_urb[16] has no null check, which may lead to a null pointer dereference. Signed-off-by: Dinghao Liu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
vieko · Dec 28, 2020 · ec36ae7 · ec36ae7
1 parent 850c35b
commit ec36ae7
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1608,6 +1608,8 @@ static short rtl8192_usb_initendpoints(struct net_device *dev)
 		void *oldaddr, *newaddr;
 
 		priv->rx_urb[16] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!priv->rx_urb[16])
+			return -ENOMEM;
 		priv->oldaddr = kmalloc(16, GFP_KERNEL);
 		if (!priv->oldaddr)
 			return -ENOMEM;