diff options
| author | Ian Rogers <irogers@google.com> | 2022-01-04 22:13:26 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-12 14:28:22 -0300 |
| commit | f9e891ea172235f902972069b87be3bdc7c48f5a (patch) | |
| tree | 710ed8aff5f7fca2461bfec2b603d60345d3c60c /tools | |
| parent | bd26bddfd93688d10984251249b84e1f6d91de27 (diff) | |
| download | linux-dm-f9e891ea172235f902972069b87be3bdc7c48f5a.tar.gz | |
perf stat: Fix memory leak in check_per_pkg()
If the key is already present then free the key used for lookup.
Found with:
$ perf stat -M IO_Read_BW /bin/true
==1749112==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 32 byte(s) in 4 object(s) allocated from:
#0 0x7f6f6fa7d7cf in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x55acecd9d7a6 in check_per_pkg util/stat.c:343
#2 0x55acecd9d9c5 in process_counter_values util/stat.c:365
#3 0x55acecd9e0ab in process_counter_maps util/stat.c:421
#4 0x55acecd9e292 in perf_stat_process_counter util/stat.c:443
#5 0x55aceca8553e in read_counters ./tools/perf/builtin-stat.c:470
#6 0x55aceca88fe3 in __run_perf_stat ./tools/perf/builtin-stat.c:1023
#7 0x55aceca89146 in run_perf_stat ./tools/perf/builtin-stat.c:1048
#8 0x55aceca90858 in cmd_stat ./tools/perf/builtin-stat.c:2555
#9 0x55acecc05fa5 in run_builtin ./tools/perf/perf.c:313
#10 0x55acecc064fe in handle_internal_command ./tools/perf/perf.c:365
#11 0x55acecc068bb in run_argv ./tools/perf/perf.c:409
#12 0x55acecc070aa in main ./tools/perf/perf.c:539
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-24-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/stat.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 5c24aca0968c96..c69b221f5e3e9b 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -345,9 +345,10 @@ static int check_per_pkg(struct evsel *counter, return -ENOMEM; *key = (uint64_t)d << 32 | s; - if (hashmap__find(mask, (void *)key, NULL)) + if (hashmap__find(mask, (void *)key, NULL)) { *skip = true; - else + free(key); + } else ret = hashmap__add(mask, (void *)key, (void *)1); return ret; |