From: Daniele Palmas dnlplm@gmail.com

stable inclusion from stable-v5.10.224 commit e87f52225e04a7001bf55bbd7a330fa4252327b5 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IALDR9

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...

--------------------------------

[ 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 Signed-off-by: Pu Lehui pulehui@huawei.com --- drivers/net/usb/qmi_wwan.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index a1c9233e264d..d412331c1f6a 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -216,6 +216,7 @@ 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; }