Date: Thu, 30 Mar 2023 18:44:28 +0000 Subject: [PATCH 5.10 1/1] staging: rtl8192u: Add null check in rtl8192_usb_initendpoints From: Dinghao Liu <dinghao.liu@xxxxxxxxxx> commit 4d5f81506835f7c1e5c71787bed84984faf05884 upstream. 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 <dinghao.liu@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201226080258.6576-1-dinghao.liu@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Danila Chernetsov <listdansp@xxxxxxx> --- drivers/staging/rtl8192u/r8192U_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 7f90af8a7c7c..e0fec7d172da 100644 --- 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; -- 2.25.1
