From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-fx0-f158.google.com ([209.85.220.158]:32929 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752974AbZC1TM0 (ORCPT ); Sat, 28 Mar 2009 15:12:26 -0400 Message-ID: <49CE7688.2020501@gmail.com> Date: Sat, 28 Mar 2009 20:12:08 +0100 From: Marcin Slusarz MIME-Version: 1.0 To: Dan Carpenter CC: LKML , eteo@redhat.com, linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-media@vger.kernel.org, general@lists.openfabrics.org Subject: Re: Dereferencing freed memory bugs References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Dan Carpenter wrote: > I added a check to smatch (http://repo.or.cz/w/smatch.git/) to check > for when we dereference > freed memory. > > drivers/dma/dmatest.c +410 dmatest_exit(7) 'dtc' > drivers/dma/dmatest.c +412 dmatest_exit(9) 'dtc' Seems to be fixed by 7cbd4877e5b167b56a3d6033b926a9f925186e12: dmatest: fix use after free in dmatest_exit > drivers/infiniband/hw/nes/nes_cm.c +563 nes_cm_timer_tick(121) 'cm_node' > drivers/infiniband/hw/nes/nes_cm.c +621 nes_cm_timer_tick(179) 'cm_node' > (...) > drivers/usb/host/ehci-hcd.c +1661 itd_complete(79) 'stream' > drivers/usb/host/ehci-hcd.c +2036 sitd_complete(64) 'stream' > drivers/uwb/reset.c +193 __uwb_rc_cmd(26) 'cmd' > (...) > net/netfilter/xt_recent.c +273 recent_mt(69) 'e' > (...) > drivers/media/video/cpia_pp.c +777 cpia_pp_detach(28) 'cpia' > (...) These are less obvious. Adding CCs. Please leave only one of openfabrics/linux-usb/netdev/linux-media in CCs when responding. ps: [s]itd_complete is in drivers/usb/host/ehci-sched.c