Zero out callback pointers in consumer process

[lttng-ust.git] / liblttng-ust-ctl / ustctl.c

diff --git a/liblttng-ust-ctl/ustctl.c b/liblttng-ust-ctl/ustctl.c
index 2d915260c8c522a2ac919b58a1222d48ec0c072c..cd80faec38270b94c662f4ea24fff5fd8d6b5e20 100644 (file)
--- a/liblttng-ust-ctl/ustctl.c
+++ b/liblttng-ust-ctl/ustctl.c
@@ -449,6 +449,12 @@ struct lttng_ust_shm_handle *ustctl_map_channel(struct lttng_ust_object_data *ch
                return NULL;
        }
        memcpy(handle->shadow_chan, chan, chan_size);
+       /*
+        * The callback pointers in the producer are invalid in the
+        * consumer. Zero them out.
+        */
+       memset(&handle->shadow_chan->backend.config.cb, 0,
+               sizeof(handle->shadow_chan->backend.config.cb));
        return handle;
 }