diff options
| author | Riccardo Mancini <rickyman7@gmail.com> | 2021-07-15 19:07:06 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-07-15 23:25:28 +0300 |
| commit | dedeb4be203b382ba7245d13079bc3b0f6d40c65 (patch) | |
| tree | 6f8d91544238d68bfeb03164f28199ba8640f718 /scripts/gdb/linux/utils.py | |
| parent | 2d6b74baa7147251c30a46c4996e8cc224aa2dc5 (diff) | |
| download | linux-dedeb4be203b382ba7245d13079bc3b0f6d40c65.tar.xz | |
perf probe: Fix dso->nsinfo refcounting
ASan reports a memory leak of nsinfo during the execution of:
# perf test "31: Lookup mmap thread".
The leak is caused by a refcounted variable being replaced without
dropping the refcount.
This patch makes sure that the refcnt of nsinfo is decreased whenever
a refcounted variable is replaced with a new value.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 544abd44c7064c8a ("perf probe: Allow placing uprobes in alternate namespaces.")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions