tracing/probe: Check event/group naming rule at parsing

[uclinux-h8/linux.git] / kernel / trace / trace_probe.c

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index bf9d3d7..8f8411e 100644 (file)
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -172,6 +172,10 @@ int traceprobe_parse_event_name(const char **pevent, const char **pgroup,
                        return -E2BIG;
                }
                strlcpy(buf, event, slash - event + 1);
+               if (!is_good_name(buf)) {
+                       pr_info("Group name must follow the same rules as C identifiers\n");
+                       return -EINVAL;
+               }
                *pgroup = buf;
                *pevent = slash + 1;
                event = *pevent;
@@ -184,6 +188,10 @@ int traceprobe_parse_event_name(const char **pevent, const char **pgroup,
                pr_info("Event name is too long\n");
                return -E2BIG;
        }
+       if (!is_good_name(event)) {
+               pr_info("Event name must follow the same rules as C identifiers\n");
+               return -EINVAL;
+       }
        return 0;
 }