From befa09b61f8bf1d7c34b8e6405f08d804640573c Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 5 Mar 2019 16:25:35 +0100 Subject: perf session: Fix double free in perf_data__close We can't call perf_data__close and subsequently perf_session__delete, because it will call perf_data__close again and cause double free for data->file.path. $ perf report -i . incompatible file format (rerun with -v to learn more) free(): double free detected in tcache 2 Aborted (core dumped) In fact we don't need to call perf_data__close at all, because at the time the got out_close is reached, session->data is already initialized, so the perf_data__close call will be triggered from perf_session__delete. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Jonas Rabenstein Cc: Nageswara R Sastry Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Ravi Bangoria Fixes: 2d4f27999b88 ("perf data: Add global path holder") Link: http://lkml.kernel.org/r/20190305152536.21035-8-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'tools') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index c764bbc91009..db643f3c2b95 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -140,7 +140,7 @@ struct perf_session *perf_session__new(struct perf_data *data, if (perf_data__is_read(data)) { if (perf_session__open(session) < 0) - goto out_close; + goto out_delete; /* * set session attributes that are present in perf.data @@ -181,8 +181,6 @@ struct perf_session *perf_session__new(struct perf_data *data, return session; - out_close: - perf_data__close(data); out_delete: perf_session__delete(session); out: -- cgit v1.2.3