diff options
| author | Ian Rogers <irogers@google.com> | 2021-11-18 00:47:49 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-11-18 10:19:14 -0300 |
| commit | b194c9cd09dd98af76beaa32a041af674260d730 (patch) | |
| tree | 528463fa6a7d4fb545e0164d4addef84d7c64df3 /tools/perf/util/header.c | |
| parent | d9fc706108c15f8bc2d4ccccf8e50f74830fabd9 (diff) | |
perf evsel: Fix memory leaks relating to unit
unit may have a strdup pointer or be to a literal, consequently memory
assocciated with it isn't freed. Change it so the unit is always strdup
and so the memory can be safely freed.
Fix related issue in perf_event__process_event_update() for name and
own_cpus. Leaks were spotted by leak sanitizer.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211118084749.2191447-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
| -rw-r--r-- | tools/perf/util/header.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index fda8d14c891f..79cce216727e 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -4257,9 +4257,11 @@ int perf_event__process_event_update(struct perf_tool *tool __maybe_unused, switch (ev->type) { case PERF_EVENT_UPDATE__UNIT: + free((char *)evsel->unit); evsel->unit = strdup(ev->data); break; case PERF_EVENT_UPDATE__NAME: + free(evsel->name); evsel->name = strdup(ev->data); break; case PERF_EVENT_UPDATE__SCALE: @@ -4268,11 +4270,11 @@ int perf_event__process_event_update(struct perf_tool *tool __maybe_unused, break; case PERF_EVENT_UPDATE__CPUS: ev_cpus = (struct perf_record_event_update_cpus *)ev->data; - map = cpu_map__new_data(&ev_cpus->cpus); - if (map) + if (map) { + perf_cpu_map__put(evsel->core.own_cpus); evsel->core.own_cpus = map; - else + } else pr_err("failed to get event_update cpus\n"); default: break; |