1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 0dc13bff2847..bf9d3d7e0c9d 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -554,6 +554,8 @@ int traceprobe_parse_probe_arg(struct trace_probe *tp, int i, char *arg,
 
         body = strchr(arg, '=');
         if (body) {
+                if (body - arg > MAX_ARG_NAME_LEN || body == arg)
+                        return -EINVAL;
                 parg->name = kmemdup_nul(arg, body - arg, GFP_KERNEL);
                 body++;
         } else {