[nft PATCH 2/3] netlink: Avoid storage leak in tunnel_parse_opt_cb error path

[Phil Sutter <phil@nwl.cc>]

When aborting geneve opt parsing, free the allocated object.

Fixes: 59f03bf14835f ("tunnel: add geneve support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 src/netlink.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/netlink.c b/src/netlink.c
index 8916370604c08..452721ec0be96 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -1960,8 +1960,10 @@ static int tunnel_parse_opt_cb(struct nftnl_tunnel_opt *opt, void *data) {
 		if (nftnl_tunnel_opt_get_flags(opt) & (1 << NFTNL_TUNNEL_GENEVE_DATA)) {
 			gnv_data = nftnl_tunnel_opt_get_data(opt, NFTNL_TUNNEL_GENEVE_DATA,
 							 &geneve->data_len);
-			if (!gnv_data)
+			if (!gnv_data) {
+				free(geneve);
 				return -1;
+			}
 			memcpy(&geneve->data, gnv_data, geneve->data_len);
 		}
 
-- 
2.54.0