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 E2888366570; Mon, 23 Mar 2026 13:54:44 +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=1774274085; cv=none; b=HNrgTKS2U2YA5X+vkjilYNGktsmFZVvVTi25zevjVoLg/8a7ZRldq6zdI+ezhGSzY9KQbCiw4UjlL7M31hKdlz0RUJFNseAHeE9+eN08JXETzpLVsyA9k7eoR5oxPV6B3vfehhoOo6jgeBv0V+LH0B02zl2izIG2iUpcyyNYBwE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774274085; c=relaxed/simple; bh=Cty8iNt7seko30I2NUMwJzu7Hm7itQmB8jF5N6e+WVo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XyFzZ4SdXAkP2zwhclGE7O+wAzRmXizK1OQrYjfBW3Ky2dCxFQjMWLSzj4mHTPQzy2zP7BVSFo5y5OOxWdsVWoduaMlncHbrcXRcSMTLpWyhwO2t6LkawmHo/isL7GQ5s6cqkMQeceB4YYwuPzKuF1Yob4+MCQ8wEgkI2K4q920= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tHATO/il; 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="tHATO/il" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6522DC2BCB1; Mon, 23 Mar 2026 13:54:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1774274084; bh=Cty8iNt7seko30I2NUMwJzu7Hm7itQmB8jF5N6e+WVo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tHATO/ilTqf7O9gQpDQJjli6N6PNKSYrIHzTL5sjuJFnC4acqgoZ2+c0KP4rRgdi+ aAUqMEcrM/pn17p6T/etcye3CGtlGLpkGT20yaHJOK2AChUkO7I4nQQ9P0b5pXI/hG UB19hbkV3ZzhZZxQNcYKa/iOnaYPqWzumoMjD394= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Benjamin Cheng , Alex Deucher Subject: [PATCH 6.19 077/220] drm/amdgpu/mmhub3.0.2: add bounds checking for cid Date: Mon, 23 Mar 2026 14:44:14 +0100 Message-ID: <20260323134507.029206743@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260323134504.575022936@linuxfoundation.org> References: <20260323134504.575022936@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 6.19-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",