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 6D7A844AB6A; Tue, 21 Jul 2026 21:20:21 +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=1784668822; cv=none; b=P0wwfXkQZgCW0gA8W3eDXtPs7VO3QwkbPLW+iKd/t5P4OVeCc3YR47HOPAjzzFWUiHvIpJkZ5rvipyKXfBrHrBbexI6Vn9MJgQkXfrU+/89iomNx/4cUUyAO17HlUl1MDCVNFao4B96Z1s/POIX2D1S7i2zicZ5ax4uM0WZH5pI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784668822; c=relaxed/simple; bh=4H1L6Ay3FQVpkBEUEr1DteY+YFwTDag9LROa04Wn7Pk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WhqtldArQwVRoFx3IHBqyQPgm/QbykIXSYUI3uzv4OW0Lbzd6Fq7gw06MJY9hylbeio2Kfz07E6QiTWy7GibiedOSLIhuERh6Z5deRJsJUSv87eEt1DXY6mGn532SjMlgABV8GZZXL6xC473AbklCtzfuyWGKFHE8R/acsok37I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=lBHBBTCM; 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="lBHBBTCM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D21AF1F000E9; Tue, 21 Jul 2026 21:20:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784668821; bh=RoTlmFt4IlEhH+hO4+ex6FaVAvsRu+5nkS/PNZHyRQY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=lBHBBTCMcV7BGtZItZQZNBollKWb1XmuZHx+Q9dioIvSsJR198iDcCHmoL6+RaVfH BbJKuboKEDvGFClAyQ46tF2DBmSrC1j4RkMuT1UGUdj5uQCsFMb9fHtxyIsZ+KcsiQ xTmZoTbYx5DAbGbQyJFk4+1wTtpHWvvCy8Hfj89M= 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 6.1 0320/1067] firmware: arm_scmi: Fix OOB in scmi_power_name_get() Date: Tue, 21 Jul 2026 17:15:21 +0200 Message-ID: <20260721152431.752439099@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152424.521567757@linuxfoundation.org> References: <20260721152424.521567757@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 6.1-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 356e83631664d9..6e01f70c3a9eee 100644 --- a/drivers/firmware/arm_scmi/power.c +++ b/drivers/firmware/arm_scmi/power.c @@ -194,8 +194,12 @@ 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