From owner-svn-src-vendor@FreeBSD.ORG Wed Nov 20 10:59:42 2013 Return-Path: Delivered-To: svn-src-vendor@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4E5BF459; Wed, 20 Nov 2013 10:59:42 +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)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 3E33A20EC; Wed, 20 Nov 2013 10:59:42 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id rAKAxgv7056988; Wed, 20 Nov 2013 10:59:42 GMT (envelope-from avg@svn.freebsd.org) Received: (from avg@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id rAKAxgxF056986; Wed, 20 Nov 2013 10:59:42 GMT (envelope-from avg@svn.freebsd.org) Message-Id: <201311201059.rAKAxgxF056986@svn.freebsd.org> From: Andriy Gapon Date: Wed, 20 Nov 2013 10:59:42 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-vendor@freebsd.org Subject: svn commit: r258377 - vendor-sys/illumos/dist/uts/common/fs/zfs X-SVN-Group: vendor-sys MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-vendor@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: SVN commit messages for the vendor work area tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Nov 2013 10:59:42 -0000 Author: avg Date: Wed Nov 20 10:59:41 2013 New Revision: 258377 URL: http://svnweb.freebsd.org/changeset/base/258377 Log: 4088 use after free in arc_release() illumos/illumos-gate@ccc22e130479b5bd7c0002267fee1e0602d3f772 Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c ============================================================================== --- vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Nov 20 10:58:25 2013 (r258376) +++ vendor-sys/illumos/dist/uts/common/fs/zfs/arc.c Wed Nov 20 10:59:41 2013 (r258377) @@ -3332,6 +3332,7 @@ arc_release(arc_buf_t *buf, void *tag) if (l2hdr) { mutex_enter(&l2arc_buflist_mtx); hdr->b_l2hdr = NULL; + list_remove(l2hdr->b_dev->l2ad_buflist, hdr); } buf_size = hdr->b_size; @@ -3415,7 +3416,6 @@ arc_release(arc_buf_t *buf, void *tag) if (l2hdr) { ARCSTAT_INCR(arcstat_l2_asize, -l2hdr->b_asize); - list_remove(l2hdr->b_dev->l2ad_buflist, hdr); kmem_free(l2hdr, sizeof (l2arc_buf_hdr_t)); ARCSTAT_INCR(arcstat_l2_size, -buf_size); mutex_exit(&l2arc_buflist_mtx);