From 45b4f402a6b782352c4bafcff682bfb01da9ca05 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 7 May 2024 20:53:00 -0700 Subject: perf report: Avoid SEGV in report__setup_sample_type() In some cases evsel->name is lazily initialized in evsel__name(). If not initialized passing NULL to strstr() leads to a SEGV. Fixes: ccb17caecfbd542f ("perf report: Set PERF_SAMPLE_DATA_SRC bit for Arm SPE event") Signed-off-by: Ian Rogers Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: Kan Liang Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20240508035301.1554434-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-report.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/perf') diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 0892b6e3e5e7..69618fb0110b 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -429,7 +429,7 @@ static int report__setup_sample_type(struct report *rep) * compatibility, set the bit if it's an old perf data file. */ evlist__for_each_entry(session->evlist, evsel) { - if (strstr(evsel->name, "arm_spe") && + if (strstr(evsel__name(evsel), "arm_spe") && !(sample_type & PERF_SAMPLE_DATA_SRC)) { evsel->core.attr.sample_type |= PERF_SAMPLE_DATA_SRC; sample_type |= PERF_SAMPLE_DATA_SRC; -- cgit v1.2.3-58-ga151