From aad4298df0d31abe15ac40d0560b0bf196d6c1b5 Mon Sep 17 00:00:00 2001
From: Leung Lai Yung <benkerbuild@gmail.com>
Date: Sat, 9 Apr 2022 10:45:12 +0000
Subject: gtpu: fix memory leak

Type: fix

Free the old rewrite string before assigning a new rewrite string for the updated new tteid value.

Signed-off-by: Leung Lai Yung <benkerbuild@gmail.com>
Change-Id: I1ec19bce6afda3dfdc31c8724b32ac7b9bc84e89
---
 src/plugins/gtpu/gtpu.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/plugins/gtpu/gtpu.c')

diff --git a/src/plugins/gtpu/gtpu.c b/src/plugins/gtpu/gtpu.c
index 33af26d70ee..086a4b55f63 100644
--- a/src/plugins/gtpu/gtpu.c
+++ b/src/plugins/gtpu/gtpu.c
@@ -578,6 +578,7 @@ int vnet_gtpu_add_mod_del_tunnel
 	  if (a->tteid == 0)
 	    return VNET_API_ERROR_INVALID_VALUE;
 	  t->tteid = a->tteid;
+	  vec_free (t->rewrite);
 	  ip_udp_gtpu_rewrite (t, is_ip6);
 	  return 0;
 	}
-- 
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