git: 59219dde9a7b - main - if_ovpn: fix mbuf leak

The branch main has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=59219dde9a7b5e33cb95e55d4621bd50b3dca37b

commit 59219dde9a7b5e33cb95e55d4621bd50b3dca37b
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2022-07-12 12:19:25 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2022-07-12 12:19:25 +0000

    if_ovpn: fix mbuf leak
    
    If the link is down or we can't find a peer we do not transmit the
    packet, but also don't fee it.
    
    Remember to m_freem() mbufs we can't transmit.
    
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
---
 sys/net/if_ovpn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/net/if_ovpn.c b/sys/net/if_ovpn.c
index 779d51075e3d..0f700a9b43d0 100644
--- a/sys/net/if_ovpn.c
+++ b/sys/net/if_ovpn.c
@@ -1988,6 +1988,7 @@ ovpn_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 	if (__predict_false(ifp->if_link_state != LINK_STATE_UP)) {
 		OVPN_COUNTER_ADD(sc, lost_data_pkts_out, 1);
 		OVPN_RUNLOCK(sc);
+		m_freem(m);
 		return (ENETDOWN);
 	}
 
@@ -2005,6 +2006,7 @@ ovpn_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
 		/* No destination. */
 		OVPN_COUNTER_ADD(sc, lost_data_pkts_out, 1);
 		OVPN_RUNLOCK(sc);
+		m_freem(m);
 		return (ENETDOWN);
 	}