diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_events_filter.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index b3b13700abce..5e74d2dae40a 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -598,6 +598,12 @@ predicate_parse(const char *str, int nr_parens, int nr_preds, top--; /* #12 */ } } + /* Only the inner loop can complete a non-empty expression. */ + if (N) { + ret = -EINVAL; + parse_error(pe, FILT_ERR_INVALID_FILTER, ptr - str); + goto out_free; + } out: if (top != op_stack) { /* Too many '(' */ |