linux-kernel - [tip: perf/urgent] perf evlist: Fix fix for freed id arrays

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Date:   Mon, 21 Oct 2019 06:26:44 -0000
From:   "tip-bot2 for Andi Kleen" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Subject: [tip: perf/urgent] perf evlist: Fix fix for freed id arrays

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     98a8b2e60c69927b1f405c3b001a1de3f4e53901
Gitweb:        https://git.kernel.org/tip/98a8b2e60c69927b1f405c3b001a1de3f4e53901
Author:        Andi Kleen <ak@...ux.intel.com>
AuthorDate:    Fri, 11 Oct 2019 11:21:40 -07:00
Committer:     Arnaldo Carvalho de Melo <acme@...hat.com>
CommitterDate: Tue, 15 Oct 2019 11:51:33 -03:00

perf evlist: Fix fix for freed id arrays

In the earlier fix for the memory overrun of id arrays I managed to typo
the wrong event in the fix.

Of course we need to close the current event in the loop, not the
original failing event.

The same test case as in the original patch still passes.

Fixes: 7834fa948beb ("perf evlist: Fix access of freed id arrays")
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Link: http://lore.kernel.org/lkml/20191011182140.8353-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/evlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d277a98..de79c73 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1659,7 +1659,7 @@ struct evsel *perf_evlist__reset_weak_group(struct evlist *evsel_list,
 			is_open = false;
 		if (c2->leader == leader) {
 			if (is_open)
-				perf_evsel__close(&evsel->core);
+				perf_evsel__close(&c2->core);
 			c2->leader = c2;
 			c2->core.nr_members = 0;
 		}