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 13E6C3B5846; Mon, 23 Mar 2026 14:07:22 +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=1774274843; cv=none; b=NyCJsq/2VZ2LB3PGm9bLHh2XpTPf83ceYEsCujDTFPBZf3C+KXi4PuDvs+zo9iRX6LGSDzeIOSgTKTxICCed5KHRIL/8k3d7SdWmm/ivqueg19dtfgcN6xKN1rBjAvkHhUI/EKJGdHSqlQD5A7M2AI7JflChBxKbWHsM75EMac0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774274843; c=relaxed/simple; bh=yOcakgRjmryMNhm6LGQ3KTHkhIFt/ovp4ebSdLNTHZI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BcDrJ4DQA7PSqyp1DDZSENfTFR0fjoYZE+Q0zAJh22+PaR0MP7QhgSCGP0H11uB2c1NU+z/Qaup8eyaNxFXEd3AynkhWJe2HTYh23VQKc5mQa9meUJODuLChHFo63TaAHy9Pp4cBDS7Hyv1NGDz3exfGlXDFiXJiI79BsRRLcgM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xBUGET9w; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xBUGET9w" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7488CC4CEF7; Mon, 23 Mar 2026 14:07:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774274842; bh=yOcakgRjmryMNhm6LGQ3KTHkhIFt/ovp4ebSdLNTHZI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xBUGET9wqEnwHyiayIz/tmNMIOLxsEpF3EK5XssruWnH39aq/m9x5h5L7L+pNxcaf cGxYxbU5V7A0tboy+g/fiKbh/EGthubSORCCO2r1Uqht/2/A+WEIP2KtQQ1exjnq8W 8Ge5RWc/l4zg0JP5PJy8A9/JdeK2t7GrnW/3jFCg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benjamin Cheng , Alex Deucher Subject: [PATCH 6.18 084/212] drm/amdgpu/mmhub3.0.1: add bounds checking for cid Date: Mon, 23 Mar 2026 14:45:05 +0100 Message-ID: <20260323134506.426761470@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323134503.770111826@linuxfoundation.org> References: <20260323134503.770111826@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 5d4e88bcfef29569a1db224ef15e28c603666c6d upstream. The value should never exceed the array size as those are the only values the hardware is expected to return, but add checks anyway. Reviewed-by: Benjamin Cheng Signed-off-by: Alex Deucher (cherry picked from commit 5f76083183363c4528a4aaa593f5d38c28fe7d7b) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c @@ -117,7 +117,8 @@ mmhub_v3_0_1_print_l2_protection_fault_s switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) { case IP_VERSION(3, 0, 1): - mmhub_cid = mmhub_client_ids_v3_0_1[cid][rw]; + mmhub_cid = cid < ARRAY_SIZE(mmhub_client_ids_v3_0_1) ? + mmhub_client_ids_v3_0_1[cid][rw] : NULL; break; default: mmhub_cid = NULL;