hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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 <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Cc: Nageswara R Sastry <nasastry@in.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Fixes: 2d4f27999b ("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 <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-03-05 16:25:35 +01:00 committed by Arnaldo Carvalho de Melo
parent 5b61adb165
commit befa09b61f
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/util/session.c
View File

@ -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: