From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD06A34107D; Thu, 2 Jul 2026 16:29:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783009756; cv=none; b=fojAWxIFYyXYAOBKrfyMUgL22sZhhcBM6ooG6CMMbeXSlm140m/9p3QSXFKEBsQtjmByKAve6O81Au/Cu436hW/ZfVIqnw44xYduzA+sBpCcy/e9FhAKKgEKUZsKDQ3HjG4udxRqipfNcwyoQA60XPm/vAZF7iXll1h9jiiCgZI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783009756; c=relaxed/simple; bh=SRB0YTO/1/vjC9vyMLoC7h/hgoQif6rI2WZsPKM4eNc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NGu5szGOBBdz7yL0TtHhEhOvjIIcY1LfSjTPr2mPIaI0gSmqKSeX0Jml8L9ydbjzxRo03QpcEwLLcoDIFZFpHZ4LRwyVpcFGY4pAgHLNV+HXpC1UWfgpZeeASjQ+zdZi/GQZbepu0kvHlErKPx0iF+qV+lyhN8vkFaKPtvSP0Ok= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=FoZKMM0q; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="FoZKMM0q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D548F1F00A3A; Thu, 2 Jul 2026 16:29:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1783009754; bh=2vEbSfGEoiEydjZAnQOzIJYnL0ZQHR1keWH6hIhwI0Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=FoZKMM0qnrETpqIZPWJoLuCjA97ZuSBBhTrvewJ5pKb61igr2NIHxh97OIS0ZJAPj RAhd0N3+ThHsYmNL+ToLUZZuB4y96syqF/f6Ee0vZae3EDDZUR+zJ3FJC0GhrW0eP1 iNHgbqbSVe0LYUwtqyfZ3Sd7L70gYjkAUIRJk0e0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Sebastian Reichel Subject: [PATCH 5.15 74/95] power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init() Date: Thu, 2 Jul 2026 18:20:17 +0200 Message-ID: <20260702155110.770843419@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260702155109.196223802@linuxfoundation.org> References: <20260702155109.196223802@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wentao Liang commit 8eec545cde69e46e9a1d2b7d915ce4f5df85b3bd upstream. Move of_node_put(dn) after the of_match_node() call, which still needs the node pointer. The node reference is correctly released after use. Fixes: e2f471efe1d6 ("power: reset: linkstation-poweroff: prepare for new devices") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang Link: https://patch.msgid.link/20260407073025.271865-1-vulab@iscas.ac.cn Signed-off-by: Sebastian Reichel Signed-off-by: Greg Kroah-Hartman --- drivers/power/reset/linkstation-poweroff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/power/reset/linkstation-poweroff.c +++ b/drivers/power/reset/linkstation-poweroff.c @@ -163,10 +163,10 @@ static int __init linkstation_poweroff_i dn = of_find_matching_node(NULL, ls_poweroff_of_match); if (!dn) return -ENODEV; - of_node_put(dn); match = of_match_node(ls_poweroff_of_match, dn); cfg = match->data; + of_node_put(dn); dn = of_find_node_by_name(NULL, cfg->mdio_node_name); if (!dn)