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authorAdrian Hunter <adrian.hunter@intel.com>2023-08-30 12:05:39 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-08-30 23:03:03 -0300
commit45210e1ada6d7889e573e993b66ed0e958aaa8ec (patch)
tree037020f2efca19bc682e3c1a5d8481377b1f2347 /tools/perf/pmu-events
parentf0005f1732245533f0bfa5bad4803c30a0e9f4e0 (diff)
perf dlfilter: Avoid leak in v0 API test use of resolve_address()
The introduction of reference counting causes the v0 API perf_dlfilter_fns.resolve_address() to leak. v2 API introduced perf_dlfilter_fns.al_cleanup() to prevent that. For the v0 API, avoid the leak by exiting the addr_location immediately, since the documentation makes it clear that pointers obtained via perf_dlfilter_fns are not necessarily valid (dereferenceable) after 'filter_event' and 'filter_event_early' return. Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Closes: https://lore.kernel.org/oe-lkp/202308232146.94d82cb4-oliver.sang@intel.com Link: http://lore.kernel.org/lkml/20230830090539.68206-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/pmu-events')
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