sctp: validate chunk len before actually using it

[cascardo/linux.git] / kernel / trace / ftrace.c

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 84752c8..2050a76 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -872,7 +872,13 @@ function_profile_call(unsigned long ip, unsigned long parent_ip,
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 static int profile_graph_entry(struct ftrace_graph_ent *trace)
 {
+       int index = trace->depth;
+
        function_profile_call(trace->func, 0, NULL, NULL);
+
+       if (index >= 0 && index < FTRACE_RETFUNC_DEPTH)
+               current->ret_stack[index].subtime = 0;
+
        return 1;
 }