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Mon, 04 May 2026 16:03:37 -0700 (PDT) Received: from inifinity.mandelbit.com ([2001:67c:2fbc:1:1d7d:7ce5:717a:133e]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a81ed6bafsm636149165e9.2.2026.05.04.16.03.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 May 2026 16:03:37 -0700 (PDT) From: Antonio Quartulli To: netdev@vger.kernel.org Cc: edumazet@google.com, sd@queasysnail.net, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, ralf@mandelbit.com, Qingfang Deng , Andrew Lunn , Minqiang Chen , Antonio Quartulli Subject: [PATCH net 1/3] ovpn: reset MAC header before passing skb up Date: Tue, 5 May 2026 01:03:03 +0200 Message-ID: <20260504230305.2681646-2-antonio@openvpn.net> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260504230305.2681646-1-antonio@openvpn.net> References: <20260504230305.2681646-1-antonio@openvpn.net> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Qingfang Deng After decapsulating a packet, the skb->mac_header still points to the outer transport header. Fix this by calling skb_reset_mac_header() in ovpn_netdev_write() to ensure the MAC header points to the beginning of the inner IP/network packet, as expected by the rest of the stack. Reported-by: Minqiang Chen Fixes: 8534731dbf2d ("ovpn: implement packet processing") Signed-off-by: Qingfang Deng Signed-off-by: Antonio Quartulli --- drivers/net/ovpn/io.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c index db43a1f8a07a..d92bb87be2b2 100644 --- a/drivers/net/ovpn/io.c +++ b/drivers/net/ovpn/io.c @@ -85,6 +85,7 @@ static void ovpn_netdev_write(struct ovpn_peer *peer, struct sk_buff *skb) skb_scrub_packet(skb, true); /* network header reset in ovpn_decrypt_post() */ + skb_reset_mac_header(skb); skb_reset_transport_header(skb); skb_reset_inner_headers(skb); -- 2.53.0