From: Daniele Palmas <dnlplm@gmail.com>
Date: Thu, 1 Aug 2024 13:55:12 +0000 (+0200)
Subject: net: usb: qmi_wwan: fix memory leak for not ip packets
X-Git-Tag: v6.10.5~240
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c6c5b91424fafc0f83852d961c10c7e43a001882;p=thirdparty%2Fkernel%2Fstable.git

net: usb: qmi_wwan: fix memory leak for not ip packets

[ Upstream commit 7ab107544b777c3bd7feb9fe447367d8edd5b202 ]

Free the unused skb when not ip packets arrive.

Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support")
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 386d62769dedb..cfda32047cffb 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -201,6 +201,7 @@ static int qmimux_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 			break;
 		default:
 			/* not ip - do not know what to do */
+			kfree_skb(skbn);
 			goto skip;
 		}