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 D19F646D55F; Tue, 21 Jul 2026 15:43:28 +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=1784648609; cv=none; b=a0BimTMSeKpi0vvMbhYtUC5QNhcSJ7JPPELkCTM+RpdpfjfjzXmpnGmrw153ssmL7gIU/GXT0yvqjgghye5jNghb2utAu5WvIfEpbmc97zfz1pfI3usrFVcN06a6ZlH+AemKV6Fdwxh7LRuBmWWAso3Rf0ZdApMGcg2sNBtGeCQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784648609; c=relaxed/simple; bh=c9guzoIges84FCjfsdpuijmeJNvgmG3HCjfIPvpDsso=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iro2sYM1LMqBkKMlOfSGBswFi4XdTCJClcS5yBOWAirm52moChzAh0/pll+5R6MsT2RlZhiKExM9d+hDvtN6vlRrk7K0M5+JJCSGN7x7aHZwK+2nBk47AHiR2XYJDa2m4i+yqpQF1EPRHPpyZDWJ6kNSH+zQJEik2TnGd/WHwCQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yqGDJ1CP; 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="yqGDJ1CP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 310F61F00A3A; Tue, 21 Jul 2026 15:43:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784648608; bh=MDSh9wTx9Fapav81Htmyy/02c1uoPt9LPIujkKi+rkY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=yqGDJ1CPvEKHu3cd6ZwOLtWIxbVF4JzK8d0OLZTHBA28ibRzKBSXtqaW8nhnpMH8m xgPAwjy2jj3fhYlZhivFmfn/Hj39rtaVYbpsqbFzTmcU554j8CnZJJxMZmWQgqMdwA LKKdc/l3FFHLf4PY4dxCikxXt30RUvhq480reZnE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Geert Uytterhoeven , Cristian Marussi , Sudeep Holla , Sasha Levin Subject: [PATCH 7.1 0262/2077] firmware: arm_scmi: Fix OOB in scmi_power_name_get() Date: Tue, 21 Jul 2026 16:58:55 +0200 Message-ID: <20260721152558.858957654@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152552.646164743@linuxfoundation.org> References: <20260721152552.646164743@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 7.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven [ Upstream commit f9ef3f66f4b18078e464b7606f9497e4dbeb9905 ] scmi_power_name_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access. Fix this by returning "unknown" for invalid domains, like scmi_reset_name_get() does. Fixes: 76a6550990e296a7 ("firmware: arm_scmi: add initial support for power protocol") Signed-off-by: Geert Uytterhoeven Reviewed-by: Cristian Marussi Link: https://patch.msgid.link/75caae28bdffb55199a0bc6cac5df112a966c608.1778838987.git.geert+renesas@glider.be Signed-off-by: Sudeep Holla Signed-off-by: Sasha Levin --- drivers/firmware/arm_scmi/power.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/arm_scmi/power.c b/drivers/firmware/arm_scmi/power.c index bb5062ab8280e0..28ef63a4ecc2e1 100644 --- a/drivers/firmware/arm_scmi/power.c +++ b/drivers/firmware/arm_scmi/power.c @@ -204,8 +204,12 @@ scmi_power_name_get(const struct scmi_protocol_handle *ph, u32 domain) { struct scmi_power_info *pi = ph->get_priv(ph); - struct power_dom_info *dom = pi->dom_info + domain; + struct power_dom_info *dom; + + if (domain >= pi->num_domains) + return "unknown"; + dom = pi->dom_info + domain; return dom->name; } -- 2.53.0