[PATCH BlueZ v1] mesh: Fix possible null pointer deference

[Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>]

From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>

This fixes possible null pointer deference for label reported by
cppcheck.

Fixes: https://github.com/bluez/bluez/security/code-scanning/1771
---
 mesh/cfgmod-server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mesh/cfgmod-server.c b/mesh/cfgmod-server.c
index e5d5a86e0d8e..f9f80aff7920 100644
--- a/mesh/cfgmod-server.c
+++ b/mesh/cfgmod-server.c
@@ -203,7 +203,7 @@ static bool save_cfg_sub(struct mesh_node *node, uint16_t ele_addr,
 
 	id = (vendor) ? id : MODEL_ID(id);
 
-	if (virt)
+	if (virt && label)
 		memcpy(db_sub.addr.label, label, 16);
 
 	if (opcode == OP_CONFIG_MODEL_SUB_VIRT_DELETE ||
-- 
2.49.0