From owner-svn-src-all@FreeBSD.ORG Sat Feb 21 06:27:46 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 434F37D0; Sat, 21 Feb 2015 06:27:46 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 2CD9F9EB; Sat, 21 Feb 2015 06:27:46 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t1L6Rkox053191; Sat, 21 Feb 2015 06:27:46 GMT (envelope-from arybchik@FreeBSD.org) Received: (from arybchik@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t1L6RkAY053190; Sat, 21 Feb 2015 06:27:46 GMT (envelope-from arybchik@FreeBSD.org) Message-Id: <201502210627.t1L6RkAY053190@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: arybchik set sender to arybchik@FreeBSD.org using -f From: Andrew Rybchenko Date: Sat, 21 Feb 2015 06:27:46 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r279097 - head/sys/dev/sfxge/common X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Feb 2015 06:27:46 -0000 Author: arybchik Date: Sat Feb 21 06:27:45 2015 New Revision: 279097 URL: https://svnweb.freebsd.org/changeset/base/279097 Log: sfxge: check allocations are non-NULL before freeing them Caught when efx_filter_init() failed and called efx_filter_fini() in the teardown path. Submitted by: Andrew Lee Sponsored by: Solarflare Communications, Inc. Approved by: gnn (mentor) Modified: head/sys/dev/sfxge/common/efx_filter.c Modified: head/sys/dev/sfxge/common/efx_filter.c ============================================================================== --- head/sys/dev/sfxge/common/efx_filter.c Sat Feb 21 06:27:16 2015 (r279096) +++ head/sys/dev/sfxge/common/efx_filter.c Sat Feb 21 06:27:45 2015 (r279097) @@ -721,7 +721,7 @@ efx_filter_init( eftp->eft_spec); if (!eftp->eft_spec) { rc = ENOMEM; - goto fail2; + goto fail3; } memset(eftp->eft_spec, 0, eftp->eft_size * sizeof(*eftp->eft_spec)); } @@ -729,6 +729,9 @@ efx_filter_init( return (0); +fail3: + EFSYS_PROBE(fail3); + fail2: EFSYS_PROBE(fail2); efx_filter_fini(enp); @@ -755,12 +758,17 @@ efx_filter_fini( EFX_STATIC_ASSERT(sizeof(eftp->eft_bitmap[0]) == sizeof(uint32_t)); bitmap_size = (eftp->eft_size + (sizeof(uint32_t) * 8) - 1) / 8; - EFSYS_KMEM_FREE(enp->en_esip, bitmap_size, eftp->eft_bitmap); - eftp->eft_bitmap = NULL; + if (eftp->eft_bitmap != NULL) { + EFSYS_KMEM_FREE(enp->en_esip, bitmap_size, + eftp->eft_bitmap); + eftp->eft_bitmap = NULL; + } - EFSYS_KMEM_FREE(enp->en_esip, eftp->eft_size * sizeof(*eftp->eft_spec), - eftp->eft_spec); - eftp->eft_spec = NULL; + if (eftp->eft_spec != NULL) { + EFSYS_KMEM_FREE(enp->en_esip, eftp->eft_size * + sizeof(*eftp->eft_spec), eftp->eft_spec); + eftp->eft_spec = NULL; + } } enp->en_mod_flags &= ~EFX_MOD_FILTER;