diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 3ae17e254fc304aa37f95ee0e18fe77fe772afeb..688b4cf72d998b31eae23d2e9b897f05356cffb1 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1920,6 +1920,11 @@ tracing_iter_ctrl_write(struct file *filp, const char __user *ubuf, break; } } + /* + * If no option could be set, return an error: + */ + if (!trace_options[i]) + return -EINVAL; filp->f_pos += cnt;