[lvc-project] (no subject)
Danila Chernetsov
listdansp at mail.ru
Thu Mar 30 23:01:12 MSK 2023
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 at zju.edu.cn>
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 at zju.edu.cn>
Link: https://lore.kernel.org/r/20201226080258.6576-1-dinghao.liu@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Signed-off-by: Danila Chernetsov <listdansp at mail.ru>
---
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
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