Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH 2/9] perf tools: Fix a asan issue in parse_events_multi_pmu_add() | Date | Fri, 31 Mar 2023 13:29:42 -0700 |
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In the parse_events_multi_pmu_add() it passes the 'config' variable twice to parse_events_term__num() - one for config and another for loc_term. I'm not sure about the second one as it's converted to YYLTYPE variable. Asan reports it like below:
In function ‘parse_events_term__num’, inlined from ‘parse_events_multi_pmu_add’ at util/parse-events.c:1602:6: util/parse-events.c:2653:64: error: array subscript ‘YYLTYPE[0]’ is partly outside array bounds of ‘char[8]’ [-Werror=array-bounds] 2653 | .err_term = loc_term ? loc_term->first_column : 0, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ util/parse-events.c: In function ‘parse_events_multi_pmu_add’: util/parse-events.c:1587:15: note: object ‘config’ of size 8 1587 | char *config; | ^~~~~~ cc1: all warnings being treated as errors
Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- tools/perf/util/parse-events.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index cc8e8766ca30..0010e5e0ee68 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1601,7 +1601,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, - config, 1, false, &config, + config, 1, false, NULL, NULL) < 0) { free(config); goto out_err; -- 2.40.0.348.gf938b09366-goog
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