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 B116039B972; Thu, 2 Jul 2026 16:43:41 +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=1783010622; cv=none; b=LIoDrMxmEmSUQRPcW31zN5d7RdFUl8V8cfU+40+kyeB/Jn0cCW1K2KJwxBlzXTSHc/+2SYD7QQZCtl4CX8n0QDBRi98RuABwfmPfgHLcE9bMeLeYV/DfxCmOcYLm3tbR8Oo6x1pSO79e8RNTowrV1NgJgmsTxPBOJKQ+gzmcuWY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783010622; c=relaxed/simple; bh=TL4hVHrnYcuysNMHhObljMw+ElenEhnBQC1BDapI2pI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ngdh6H6pCyQtp61Ow/7UQ6txR7Rh4uH7sBe8371asTrI39eaKpeAT+DlI0tZHBedovB+pHIMtxQ6XXdwDVMS72BGqOyyhbA1FOzZYlacX736+vazr2Xnfntj1Qp/87aQmNrtHMBVuMPsdCwX+VbSGDrVX8OwRCZoLoGC1xXWbhs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Az/bNV7V; 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="Az/bNV7V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2355C1F000E9; Thu, 2 Jul 2026 16:43:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1783010621; bh=dv46do1+GhlzsmyDMBAZJ6iTxuo7QXUwmeVfyK1En2E=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Az/bNV7VHZOS2ViAYIZfR0SmmjMenneqHHrgEsk6pyNmnAXhwgMV266MVReSFnY+R 0TVEcg8grDDfb/mk3InJB8ed3sGzg5oTXMVIc8c8Mu0sbSIcAxyMdgCPcoP3E2X4AF ShX10zwnwJ8vxUl532anAFUqrXB80zXgPQdpebvU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wentao Liang , Sebastian Reichel Subject: [PATCH 6.12 179/204] power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init() Date: Thu, 2 Jul 2026 18:20:36 +0200 Message-ID: <20260702155122.405838803@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260702155118.667618796@linuxfoundation.org> References: <20260702155118.667618796@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 6.12-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)