[PATCH perf/core v11 02/23] perf-probe: Fix to add NULL check for strndup

[Masami Hiramatsu]

Fix to add a NULL check for strndup when parsing
probe trace command.

Signed-off-by: Masami Hiramatsu <mhira...@kernel.org>
---
 Changes in v10:
  - Splited from "perf probe: Allow wildcard for cached events"
---
 tools/perf/util/probe-event.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 74401a2..7ae3dd1 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1603,6 +1603,10 @@ int parse_probe_trace_command(const char *cmd, struct 
probe_trace_event *tev)
        p = strchr(argv[1], ':');
        if (p) {
                tp->module = strndup(argv[1], p - argv[1]);
+               if (!tp->module) {
+                       ret = -ENOMEM;
+                       goto out;
+               }
                p++;
        } else
                p = argv[1];