From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064968; b=s4R9KmYNuR68h9AtSKdSf+t6DUpTgmzkpWXk74gHhCaKbwYi0IwfBNPkJTShzDTG6t/a rfh/aciUfSjsH+jJyDyG1rGbtqImWuXmHBjcY2A/1zY96BFsZ9rsmuO+H1ACkGyeH76hQ M41NhbjgedYI0DzMR8YnMEo13UjORbN1Z+YWx/2S3b8CsbDkGjTayEvrM31vW/CEbSiP7 /VKh+6Q5tKF9GJ+tjJ315IdvAtja6eeU/rMco6EY+nGhQlfA9R6E6ConOcDnsZBrkddcU pNiFIzquUHG1b/gIXJHDr9edncMlIVqz+3faSjfnE7GNcXQ+Z05O/Ao1XQVP4eCBh/g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064968; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=ssrlz/79x+0bz6+7ORbKkiTsOt+c0Yv63oJ2eeFAQ/U=; b=mEPHwB/TXbUa9FkZM2ZL3HfxzzS10Dvu9AKunLgDM4Lu0eG7uyqry1rWwUlUTLE+7RY6 DMzweJ+hQ4qTna5DhFYaHBwsyQfwDIn5bMgk6IgRED03+0ii6tDkLgZ9Gfsahs9XlUI+t wQRsa+fzr3odJ93LmPX15o7yLHhHuO0l13yBNoRE5Gtopi6TASVZan/KPI+OqKAwIE0/X zETrfjVhAa4vubPhzYK9OqUL15ChV79e6SOpbnKypRapwGkV6lR4ZKv/1zy9L8Z1Q9mYs SlfSCVBSFu89ibwb//D9yX4zZtU0sW0N47j8GetjrbrIQPJ294kWewH+fAmzh/7DSpQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=S4W0Zqyz; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 13C9C606A334; Sat, 7 Nov 2026 15:22:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=S4W0Zqyz Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0BE01F008A1; Sat, 7 Nov 2026 15:22:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064967; bh=ssrlz/79x+0bz6+7ORbKkiTsOt+c0Yv63oJ2eeFAQ/U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=S4W0ZqyzBpOjp7mJY9+65PQPb2cDUJCPD6qQ/4Z0ddVZ1a3jkumtd6yYj1dGVo97D HZLvFa4+FthhBOMSqOkyqCVv0UfiL+Y4Q3Iz9kv192v/BAUakXW4fpYvKsvGEkIDQs ArdPcM09QIpVPgiihEOFOjAdfkxbPx6qyY6UvxBI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sashiko , Ian Rogers , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 7.3 0850/1257] perf python: Free the parse error entries when parsing fails Date: Sat, 7 Nov 2026 08:52:26 -0500 Message-ID: <20261107135002.803408185@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnaldo Carvalho de Melo [ Upstream commit 39e0022c89abcdc1a811dfc0aeec2a2b9010b660 ] pyrf__parse_events() prints the entries parse_events_error__print() receives with the details of a failed parse, but returns without freeing them, leaking whatever parse_events_error__handle() allocated, so call parse_events_error__exit() on both paths, as the other parse_events() callers do. The perf test attr core PMU probe takes this failure path on machines without a core PMU, where the leak then happens on every test run. Fixes: f081defccd93 ("perf python: Add parse_events function") Reported-by: Sashiko Closes: https://lore.kernel.org/r/sashiko-outbox-173525@kernel.org Reviewed-by: Ian Rogers Tested-by: Ian Rogers Cc: stable@vger.kernel.org Assisted-by: LLM Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/util/python.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index d8a842621cda0..c504b83be39fb 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -3469,10 +3469,12 @@ static PyObject *pyrf__parse_events(PyObject *self, PyObject *args) perf_evlist__set_maps(evlist__core(evlist), cpus, threads); if (parse_events(evlist, input, &err)) { parse_events_error__print(&err, input); + parse_events_error__exit(&err); PyErr_SetFromErrno(PyExc_OSError); evlist__put(evlist); return NULL; } + parse_events_error__exit(&err); result = pyrf_evlist__from_evlist(evlist); evlist__put(evlist); return result; -- 2.53.0