Fix: Crash on lttng list -j/-l/-p when no events are present

The lttng client will free an uninitialized pointer whenever a the
lttng list command is invoked on a domain which involves the log4j,
JUL or Python agents.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/bin/lttng/commands/list.c b/src/bin/lttng/commands/list.c
index dba08bea16fd8080a76970f284bb712a99a27efa..31f7bd97479cf7cbf559bbc961c841c9f0605897 100644 (file)
--- a/src/bin/lttng/commands/list.c
+++ b/src/bin/lttng/commands/list.c
@@ -419,7 +419,7 @@ static int list_agent_events(void)
        int i, size, ret = CMD_SUCCESS;
        struct lttng_domain domain;
        struct lttng_handle *handle;
-       struct lttng_event *event_list;
+       struct lttng_event *event_list = NULL;
        pid_t cur_pid = 0;
        char *cmdline = NULL;
        const char *agent_domain_str;