From: Yicong Yang <yangyicong@hisilicon.com> driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8MEWF CVE: NA -------------------------------- When dump the raw trace by `perf report -D` ASan reports a memory leakage in perf_event__fprintf_event_update(). It shows that we allocated a temporary cpumap for dumping the CPUs but doesn't release it and it's not used elsewhere. Fix this by free the cpumap after the dumping. Fixes: c853f9394b7b ("perf tools: Add perf_event__fprintf_event_update function") Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Junhao He <hejunhao3@huawei.com> --- tools/perf/util/header.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index be850e9f8852..1c508c1e4aee 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -3970,10 +3970,12 @@ size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp) ret += fprintf(fp, "... "); map = cpu_map__new_data(&ev_cpus->cpus); - if (map) + if (map) { ret += cpu_map__fprintf(map, fp); - else + perf_cpu_map__put(map); + } else { ret += fprintf(fp, "failed to get cpus\n"); + } break; default: ret += fprintf(fp, "... unknown type\n"); -- 2.33.0