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 2902B23D288; Mon, 23 Mar 2026 14:46:48 +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=1774277209; cv=none; b=ZJMf4IKHEY8DEJPfFHCZ+d1q11ZBC2ktFC6nMSgAzt8VJsgc342jxMVPV10yNLbYwIxCzBYNb/O/zsKS1kHZRi/tPwTQ+0fN9QAKzTSudp7OeqcHwkYAc9xFskcGmRxp6tENJa2zTs7ThFOWsDhbMXSyi5odgS7OQZ8gM1dIbgY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774277209; c=relaxed/simple; bh=/d129W0YlM63cNUKFbGXrJXuqHs1Vu+o0xXj8x6N0XA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LzuKL2JmrSmVOXygeCe9bWdF68jV6UEj4gmgce4XPSQPIpzXCI4O6JN0Ep+bWNeZMcDrornwLUfdlHkW9NphPT7x+MlqHNSGJsUcUqar94ujfuU4ZKbZp+VABWveCg3Q47OsBXWjFLG82jPRrh43l28ZpLdIBrEPn+b4TwXkPWk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CFlCdEb9; 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="CFlCdEb9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7657EC4CEF7; Mon, 23 Mar 2026 14:46:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774277208; bh=/d129W0YlM63cNUKFbGXrJXuqHs1Vu+o0xXj8x6N0XA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CFlCdEb9o1pwSllzjpjbsP23l14Mu9y0jgq0CblJDJsboAxaOZj9c5DeDpzfRCXDO m5q0BzSWOwjqAOHmESrPraajygULJRuqH/kPzN7EpKOHT/HFiupfH6q/A/iaAqVbHt nTUPwV6fMhs5hkqasjKdp7y+D6KRFcC/dW8pKAK0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benjamin Cheng , Alex Deucher Subject: [PATCH 6.12 355/460] drm/amdgpu/mmhub3.0.2: add bounds checking for cid Date: Mon, 23 Mar 2026 14:45:51 +0100 Message-ID: <20260323134535.275869475@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323134526.647552166@linuxfoundation.org> References: <20260323134526.647552166@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: Alex Deucher commit e5e6d67b1ce9764e67aef2d0eef9911af53ad99a 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 1441f52c7f6ae6553664aa9e3e4562f6fc2fe8ea) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_2.c @@ -108,7 +108,8 @@ mmhub_v3_0_2_print_l2_protection_fault_s "MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n", status); - mmhub_cid = mmhub_client_ids_v3_0_2[cid][rw]; + mmhub_cid = cid < ARRAY_SIZE(mmhub_client_ids_v3_0_2) ? + mmhub_client_ids_v3_0_2[cid][rw] : NULL; 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",