From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9B8C71CB68D; Sun, 24 Mar 2024 22:46:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711320392; cv=none; b=HPzbafQgaGzAIdyQU3mx1rJDTC3zeqh+aSkXkywPOG6wffA+wNS6DHQeu5d2RKiOJYYJq7/sr5y4zSn0z9JcgFGuO/cv7rY2zcwczyHmB/ztc+JIu6UQzDrQ3zSv+4P0a47xiCcyoeTf+YS/2omcac96CqhAdmoRh4AWkN1jXW8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711320392; c=relaxed/simple; bh=+gfGD22mjnzhNRULgZth3y7IpdDh67/7ZzicS4dW69c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NHGGAXiHEBXo6VYyZrX8yEtP4Ay3yfWMXkijOrYoul5XdAEokJcvSFoOzx41CZgssDcmEF6C+WE45/zbU2ioQhKzadJTwnPgln8vnc6C2ofhNcOSQ0xmMgMBEnhwqTQn2Ol927M5KQza4hZN0fOqVpcVdjt30EOOtrlHtZHE3s0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JV7VEQ4f; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JV7VEQ4f" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 88157C43390; Sun, 24 Mar 2024 22:46:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711320392; bh=+gfGD22mjnzhNRULgZth3y7IpdDh67/7ZzicS4dW69c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=JV7VEQ4fnjL0YoVJZzQfi68t+A/xsuRO5B995SD+bsW/g8mh3SVeLyD/2yRhO6B6z txMsKKqYzqiGv+z1/7oKLN+4BF/Aaq1Pj94tTp6BHeJyY1v7GYJU8urbdC1s1l2vfF 3SJ7rKEOhdnJZgJ3cxFp+SB7a5LyD5cCtXpzv1FRfbJde8nrbworRRVPA2duQCziFW 0VtqCKRP7uFoW+gA5ZUXHkL/tPh1r2/CLuZhO+W4pupNi8nNgKfwLvNYVBsFjUHM6f JfaiU7XLDe1HowvqvTpkNmyTE4mxzL0qJtQ8YMW0Z4Vxk1TFJzQp7jS60IMOSWLslt lDKypHAMcIRUw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Lang Yu , Yifan Zhang , Alex Deucher , Sasha Levin Subject: [PATCH 6.8 698/715] drm/amdgpu: fix mmhub client id out-of-bounds access Date: Sun, 24 Mar 2024 18:34:37 -0400 Message-ID: <20240324223455.1342824-699-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324223455.1342824-1-sashal@kernel.org> References: <20240324223455.1342824-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Lang Yu [ Upstream commit 6540ff6482c1a5a6890ae44b23d0852ba1986d9e ] Properly handle cid 0x140. Fixes: aba2be41470a ("drm/amdgpu: add mmhub 3.3.0 support") Signed-off-by: Lang Yu Reviewed-by: Yifan Zhang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c index b3961968c10c4..238ea40c24500 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_3.c @@ -99,16 +99,15 @@ mmhub_v3_3_print_l2_protection_fault_status(struct amdgpu_device *adev, switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) { case IP_VERSION(3, 3, 0): case IP_VERSION(3, 3, 1): - mmhub_cid = mmhub_client_ids_v3_3[cid][rw]; + mmhub_cid = cid < ARRAY_SIZE(mmhub_client_ids_v3_3) ? + mmhub_client_ids_v3_3[cid][rw] : + cid == 0x140 ? "UMSCH" : NULL; break; default: mmhub_cid = NULL; break; } - if (!mmhub_cid && cid == 0x140) - mmhub_cid = "UMSCH"; - dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n", mmhub_cid ? mmhub_cid : "unknown", cid); dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n", -- 2.43.0