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=1794590787; b=vsAQcDKQ9WkjdiCPi7QCurc8iCc1qYjZnC1mKxmq8j09aJqVLOevcibBg61acMRUVxPA p2PgZ4iBKN2KziQdQNdJTyY6kBOFPS2rwS4YdU3RPuaO2nsDAhTDkZTqmzGxh8ui7IR7y nm5JIMySEU8qwS4VC3/qeKoPaEEPG2EgGSMF5nx2NinaSYCtx2R0Apr6qZcC7tpKLEANM QvxfopVLZjm0o9CBLx7d6/LCbirPSRf6caXXbi16+zjTxNAmr9xx0oozkOvo/duwfv5g3 xAf/3AURBcQIRhlflNWBA+mQ9KA+LZ3VcCaNdp6FwvgtWBkaSto2jhOlwaWiovH5t5Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794590787; 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=7t2KdZ6NExDbv/R+plzmvBB16JIS91ek4VRLMuTE39w=; b=nYe6ersQAmgO8EuVzvrJzwYZouXNDIjujbv/ZMxfNGVIMpRHXJVke59aIG8asWPARgHM c9CQLT31jKQaRhUW8k6C29HIZLMHUcntXrCe17Iy6R+oQX2pJOD82R/uxU+shfFxtSBmM +vg0az4I55DeaggX8jxag0hTKXDZgB33tLQ9qr0j3hnzUbe4mKYNMfDXmFwOo+69Vy0cO tJatLFtyn5aoWsvYDXIOPRYhta+bokKAPD/GtFZD0ugeb+bJJVZKpBqcjjGpz9d0FSEKj RlY2rUpO7hVsgQpyWFt5kqmsoEiKII7mOqkm8SQorzYESMvxcDYHsJvpsyLt+rwPc7Q== 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=JNKJeYWT; 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 AF6B9606E20F; Fri, 13 Nov 2026 17:26:27 +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=JNKJeYWT Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BC9A1F000C5; Fri, 13 Nov 2026 17:26:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794590787; bh=7t2KdZ6NExDbv/R+plzmvBB16JIS91ek4VRLMuTE39w=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JNKJeYWTjt1vKrj6NEUzBGmNqgC5+tJryr9HbiHF6pXFbzvC1Fben18WkDP0DqRiZ RH95ShXzvFpT3KwH/JrI0bSAeavC5H1hZKDGrmcR/JA8ivUxoeVsLiWeqYM1NaMCFk Wx/HPMdlMcBla0MqlAA0NZtzrrhfiZANdDJS1W6A= 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 6.18 680/686] perf python: Free the parse error entries when parsing fails Date: Fri, 13 Nov 2026 10:53:33 -0500 Message-ID: <20261113153844.688411414@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261113153820.902362109@linuxfoundation.org> References: <20261113153820.902362109@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 6.18-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 [ sashal: adjusted context for a stack-allocated event list using evlist__exit() instead of evlist__put() ] 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 a65a4d9f8cc83..2fa9670bc51f0 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -2075,9 +2075,11 @@ static PyObject *pyrf__parse_events(PyObject *self, PyObject *args) evlist__init(&evlist, cpus, threads); if (parse_events(&evlist, input, &err)) { parse_events_error__print(&err, input); + parse_events_error__exit(&err); PyErr_SetFromErrno(PyExc_OSError); return NULL; } + parse_events_error__exit(&err); result = pyrf_evlist__from_evlist(&evlist); evlist__exit(&evlist); return result; -- 2.53.0