qemuMonitorJSONSendKey: Avoid double free

After successful @cmd construction the memory where @keys points to is
part of @cmd. Avoid double freeing it.
(cherry picked from commit 3e8343e1510741623aa5bc1dfb74ec39fde868dd)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 12f7e691155e892b685d3d2ff25c8e780fcc53a3..27e72ab8b59750e519f8c5cbc722ff856cd0fd6d 100644 (file)
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -3454,6 +3454,9 @@ int qemuMonitorJSONSendKey(qemuMonitorPtr mon,
     if (!cmd)
         goto cleanup;
 
+    /* @keys is part of @cmd now. Avoid double free */
+    keys = NULL;
+
     if ((ret = qemuMonitorJSONCommand(mon, cmd, &reply)) < 0)
         goto cleanup;