From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756058AbbDGNXx (ORCPT ); Tue, 7 Apr 2015 09:23:53 -0400 Received: from ip4-83-240-67-251.cust.nbox.cz ([83.240.67.251]:54437 "EHLO ip4-83-240-18-248.cust.nbox.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754075AbbDGMwG (ORCPT ); Tue, 7 Apr 2015 08:52:06 -0400 From: Jiri Slaby To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Eli Cohen , Eli Cohen , Roland Dreier , Jiri Slaby Subject: [PATCH 3.12 024/155] IB/core: Avoid leakage from kernel to user space Date: Tue, 7 Apr 2015 14:49:53 +0200 Message-Id: <755524689790d7f95ec5581c98c24ff62218685b.1428411003.git.jslaby@suse.cz> X-Mailer: git-send-email 2.3.4 In-Reply-To: <9a548862b8a26cbccc14f2c6c9c3688813d8d14b.1428411003.git.jslaby@suse.cz> References: <9a548862b8a26cbccc14f2c6c9c3688813d8d14b.1428411003.git.jslaby@suse.cz> In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Eli Cohen 3.12-stable review patch. If anyone has any objections, please let me know. =============== commit 377b513485fd885dea1083a9a5430df65b35e048 upstream. Clear the reserved field of struct ib_uverbs_async_event_desc which is copied to user space. Signed-off-by: Eli Cohen Reviewed-by: Yann Droneaud Signed-off-by: Roland Dreier Signed-off-by: Jiri Slaby --- drivers/infiniband/core/uverbs_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 2df31f68ea09..849c9dc7d1f6 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -473,6 +473,7 @@ static void ib_uverbs_async_handler(struct ib_uverbs_file *file, entry->desc.async.element = element; entry->desc.async.event_type = event; + entry->desc.async.reserved = 0; entry->counter = counter; list_add_tail(&entry->list, &file->async_file->event_list); -- 2.3.4