Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031462AbaGDWqA (ORCPT ); Fri, 4 Jul 2014 18:46:00 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:57399 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031072AbaGDWUp (ORCPT ); Fri, 4 Jul 2014 18:20:45 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sebastian Herbszt , Nicholas Bellinger Subject: [PATCH 3.14 02/59] target: Fix left-over se_lun->lun_sep pointer OOPs Date: Fri, 4 Jul 2014 15:18:51 -0700 Message-Id: <20140704221539.661339539@linuxfoundation.org> X-Mailer: git-send-email 2.0.1 In-Reply-To: <20140704221539.544876024@linuxfoundation.org> References: <20140704221539.544876024@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nicholas Bellinger commit 83ff42fcce070801a3aa1cd6a3269d7426271a8d upstream. This patch fixes a left-over se_lun->lun_sep pointer OOPs when one of the /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT/lun/$LUN/alua* attributes is accessed after the $DEVICE symlink has been removed. To address this bug, go ahead and clear se_lun->lun_sep memory in core_dev_unexport(), so that the existing checks for show/store ALUA attributes in target_core_fabric_configfs.c work as expected. Reported-by: Sebastian Herbszt Tested-by: Sebastian Herbszt Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman --- drivers/target/target_core_device.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -616,6 +616,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/