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 A127433372A; Sun, 7 Jun 2026 10:56:37 +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=1780829800; cv=none; b=bkqtjxpKYjX5Q02IX0WtnUHSFgJ/hEtLiyEmcf9pfTKz++i/wMXoblpre8qqOmuuUew5DunqG71zJkLW1uvCMxx5gkuyLLKq85Mc083zOYpsMtXLtDoTTKrCzTa7brNoUc7Qn1BVDXHFPrf+HjRR98nWQ/vypsOD2YVAYhLT2bk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780829800; c=relaxed/simple; bh=16iL4hKQ8WirjK9BYKbWrW6nBwJ59QtlnI29tacsdMQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tlRYkKPzZ9gFhQg5Do7IR57+SrDlK8PIan3fzfNHk9miuUZIZuWXTpOP2h7u8WOxIHN4DOYPqYwkWI2MzvhpNlyEhm6y4wqkS29C+Tft3c7Lofyg7NLNPMnDlha4b0LlhftlFSZqFb1kn9M2QaaqJzei0YMeam7rfBKJMS1cqDk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wB36/WNV; 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="wB36/WNV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 734421F00893; Sun, 7 Jun 2026 10:56:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780829797; bh=Z5Z6PWR6qyixSQFlBjAQyxBQnA9rbbQ6+oQJHWMy4jk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=wB36/WNVdHqQaRcKDsKT1oLxYq4i8ZX5jqXZ2AstNu/z+TK93qSEGmtFNRMs6thXM ioGSGzxRz3DYV9gfwLOdL5XugodiAXxwCBIxsS8LlFSaAspfwVo1O+fpKgcvWo3tQk 8hx9NewZ/oyngUGV5RRT7rXI81MZHYgrrG3Qi1RE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eric Huang , Alex Deucher Subject: [PATCH 6.12 254/307] drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger Date: Sun, 7 Jun 2026 12:00:51 +0200 Message-ID: <20260607095737.017968802@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260607095727.647295505@linuxfoundation.org> References: <20260607095727.647295505@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: Eric Huang commit 93f5534b35a05ef8a0109c1eefa800062fee810a upstream. get_queue_ids() computes array_size = num_queues * sizeof(uint32_t), which could overflow on 32-bit size_t build. using array_size() instead, it saturates to SIZE_MAX on overflow. Signed-off-by: Eric Huang Acked-by: Alex Deucher Signed-off-by: Alex Deucher (cherry picked from commit 2d57a0475f085c08b49312dfd8edcb461845f285) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -3194,12 +3194,14 @@ static void copy_context_work_handler (s static uint32_t *get_queue_ids(uint32_t num_queues, uint32_t *usr_queue_id_array) { - size_t array_size = num_queues * sizeof(uint32_t); - if (!usr_queue_id_array) return NULL; - return memdup_user(usr_queue_id_array, array_size); + if (num_queues > KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) + return ERR_PTR(-EINVAL); + + return memdup_user(usr_queue_id_array, + array_size(num_queues, sizeof(uint32_t))); } int resume_queues(struct kfd_process *p,