linux-kernel - [PATCH 5.10 081/103] perf symbol-elf: Fix memory leak by freeing sdt

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Date:   Wed,  1 Sep 2021 14:28:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Riccardo Mancini <rickyman7@...il.com>,
        Ian Rogers <irogers@...gle.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Fabian Hemmer <copy@...y.sh>, Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Remi Bernon <rbernon@...eweavers.com>,
        Jiri Slaby <jirislaby@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Hanjun Guo <guohanjun@...wei.com>
Subject: [PATCH 5.10 081/103] perf symbol-elf: Fix memory leak by freeing sdt_note.args

From: Riccardo Mancini <rickyman7@...il.com>

commit 69c9ffed6cede9c11697861f654946e3ae95a930 upstream.

Reported by ASan.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
Acked-by: Ian Rogers <irogers@...gle.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Fabian Hemmer <copy@...y.sh>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Remi Bernon <rbernon@...eweavers.com>
Cc: Jiri Slaby <jirislaby@...nel.org>
Link: http://lore.kernel.org/lkml/20210602220833.285226-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Hanjun Guo <guohanjun@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 tools/perf/util/symbol-elf.c |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -2360,6 +2360,7 @@ int cleanup_sdt_note_list(struct list_he
 
 	list_for_each_entry_safe(pos, tmp, sdt_notes, note_list) {
 		list_del_init(&pos->note_list);
+		zfree(&pos->args);
 		zfree(&pos->name);
 		zfree(&pos->provider);
 		free(pos);