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 63EE25C8FC; Tue, 13 Feb 2024 00:20:13 +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=1707783613; cv=none; b=ACnMyzD6wc7jMl1XmJ13OFloMkomxHWInk0ZhyIo7LA8dHeyznJmB9NJbQR1xBxLvhDHqc5ncRi/YruyBYJP4Ss3i4e//s/h2VnUo2XNrYkEpbxIeoa3RWbku82yyRRAWw4ieBCXlFgTjqyY+eA2C592C3+A56ROQ5iZ/rJUyjY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707783613; c=relaxed/simple; bh=I7nRm05Rrc8jVppMcnUrwhVUzVglvFm1ffpXBh29HME=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hVg11xAKBjSYl5Evbx2StaVl1kC5uN7I+C1PuW/NGnNpw7YH0H3G5tiJfjB0GocEpuZh2jG86DSrhn0aeqZonJ16MTVN7hgWHq/7ln6LWiGV5Zc0JPg2vJcTTOBCnTVO8qANJIIzz3+5p0MrcSmx3XsE3+IA0oK5+HB4wRsg7fo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EZR+0XF+; 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="EZR+0XF+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CE6ABC43390; Tue, 13 Feb 2024 00:20:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707783613; bh=I7nRm05Rrc8jVppMcnUrwhVUzVglvFm1ffpXBh29HME=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EZR+0XF+yhOfWj/+abX01ertUjH98rgl7Vjj/owQ9YNDS9A8cpRONSDdJDzFPSNoC 9at7vZKRNXOr8MWr7xPyqOCT0DuCizXExNJD3av9qZQJhsqIsn0IKQiMYYAVwE71lq 22ogRLQzck/R5sD1qUyj/FozXGYaXn8WoSjJ+Ld6nfjZEnvoF3Z8ROWgf5qAgSvws/ +IXrw58J6JIcNIGj9n/p0evs2CkaYYB9PAjaSIpC9LbzonqhLmHI49fwrd5TH0YSiJ 6IrNA8dKd9k/uWxmaAsIaYZMJa52uoUR2L3MrnJ74kv/WhY2xofj8+M+K195I+gOiA j9FrDRWXF3NTA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Stanley.Yang" , Hawking Zhang , Alex Deucher , Sasha Levin , christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.7 52/58] drm/amdgpu: Fix shared buff copy to user Date: Mon, 12 Feb 2024 19:17:58 -0500 Message-ID: <20240213001837.668862-52-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240213001837.668862-1-sashal@kernel.org> References: <20240213001837.668862-1-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 X-stable-base: Linux 6.7.4 Content-Transfer-Encoding: 8bit From: "Stanley.Yang" [ Upstream commit 2dcf82a8e8dc930655787797ef8a3692b527c7a9 ] ta if invoke node buffer |-------- ta type ----------| |-------- ta id ----------| |-------- cmd id ----------| |------ shared buf len -----| |------ shared buffer ------| ta if invoke node buffer is as above, copy shared buffer data to correct location Signed-off-by: Stanley.Yang Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c index 468a67b302d4..ca5c86e5f7cd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp_ta.c @@ -362,7 +362,7 @@ static ssize_t ta_if_invoke_debugfs_write(struct file *fp, const char *buf, size } } - if (copy_to_user((char *)buf, context->mem_context.shared_buf, shared_buf_len)) + if (copy_to_user((char *)&buf[copy_pos], context->mem_context.shared_buf, shared_buf_len)) ret = -EFAULT; err_free_shared_buf: -- 2.43.0