From owner-svn-src-head@freebsd.org Fri Dec 28 17:00:13 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9B3871419DC5; Fri, 28 Dec 2018 17:00:13 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 412BA919E1; Fri, 28 Dec 2018 17:00:13 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 2F7D425B3F; Fri, 28 Dec 2018 17:00:13 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBSH0DQ9065581; Fri, 28 Dec 2018 17:00:13 GMT (envelope-from emaste@FreeBSD.org) Received: (from emaste@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBSH0DGr065580; Fri, 28 Dec 2018 17:00:13 GMT (envelope-from emaste@FreeBSD.org) Message-Id: <201812281700.wBSH0DGr065580@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: emaste set sender to emaste@FreeBSD.org using -f From: Ed Maste Date: Fri, 28 Dec 2018 17:00:13 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342575 - head/usr.bin/ar X-SVN-Group: head X-SVN-Commit-Author: emaste X-SVN-Commit-Paths: head/usr.bin/ar X-SVN-Commit-Revision: 342575 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 412BA919E1 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.956,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Dec 2018 17:00:13 -0000 Author: emaste Date: Fri Dec 28 17:00:12 2018 New Revision: 342575 URL: https://svnweb.freebsd.org/changeset/base/342575 Log: ar: detect and error out on 32-bit symbol table overflow BSD ar currently does not support the /SYM64/ 64-bit symbol table, and previously truncated to 32-bits, silently producing corrupted archives larger than 4GB. Note that this is only a partial fix; additional checks will come. PR: 234454 Reported by: Aijaz Baig, imp MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Modified: head/usr.bin/ar/write.c Modified: head/usr.bin/ar/write.c ============================================================================== --- head/usr.bin/ar/write.c Fri Dec 28 16:08:49 2018 (r342574) +++ head/usr.bin/ar/write.c Fri Dec 28 17:00:12 2018 (r342575) @@ -659,9 +659,13 @@ write_objs(struct bsdar *bsdar) pm_sz = _ARMAG_LEN + (_ARHDR_LEN + s_sz); if (bsdar->as != NULL) pm_sz += _ARHDR_LEN + bsdar->as_sz; - for (i = 0; (size_t)i < bsdar->s_cnt; i++) + for (i = 0; (size_t)i < bsdar->s_cnt; i++) { + if (*(bsdar->s_so + i) > UINT32_MAX - pm_sz) + bsdar_errc(bsdar, EX_SOFTWARE, 0, + "Symbol table offset overflow"); *(bsdar->s_so + i) = htobe32(*(bsdar->s_so + i) + pm_sz); + } } if ((a = archive_write_new()) == NULL)