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Subject[PATCH v2 1/2] perf parse-events: fix memory leaks found on parse_events
From
Memory leaks found by applying LLVM's libfuzzer on the parse_events
function.

Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/parse-events.c | 2 ++
tools/perf/util/parse-events.y | 3 ++-
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 593b6b03785d..1e0bec5c0846 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1482,6 +1482,8 @@ int parse_events_add_pmu(struct parse_events_state *parse_state,

list_for_each_entry_safe(pos, tmp, &config_terms, list) {
list_del_init(&pos->list);
+ if (pos->free_str)
+ free(pos->val.str);
free(pos);
}
return -EINVAL;
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 94f8bcd83582..8212cc771667 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -44,7 +44,7 @@ static void free_list_evsel(struct list_head* list_evsel)

list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
list_del_init(&evsel->core.node);
- perf_evsel__delete(evsel);
+ evsel__delete(evsel);
}
free(list_evsel);
}
@@ -326,6 +326,7 @@ PE_NAME opt_pmu_config
}
parse_events_terms__delete($2);
parse_events_terms__delete(orig_terms);
+ free(pattern);
free($1);
$$ = list;
#undef CLEANUP_YYABORT
--
2.25.1.696.g5e7596f4ac-goog
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