Messages in this thread Patch in this message | | | From | Bo YU <> | Subject | [PATCH] perf trace: Fix potential USE_AFTER_FREE problem | Date | Thu, 14 Feb 2019 00:23:56 -0500 |
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From: Bo Yu <tsu.yubo@gmail.com>
There is a freed pointer "evsel", so fix it.
Detected by CoverityScan, CID#1442595("Memory-illegalaccesses (USE_AFTER_FREE)") Fixes: 6ab3bc240ade4("perf trace: Support multiple "vfs_getname" probes")
Signed-off-by: Bo Yu <tsu.yubo@gmail.com> --- tools/perf/builtin-trace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index b36061cd1ab8..4036b20a1067 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2515,7 +2515,7 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) { bool found = false; - struct perf_evsel *evsel, *tmp; + struct perf_evsel *evsel = NULL, *tmp; struct parse_events_error err = { .idx = 0, }; int ret = parse_events(evlist, "probe:vfs_getname*", &err); -- 2.11.0
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