From owner-svn-src-head@freebsd.org Wed Dec 19 22:47:39 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 D6964134BA67; Wed, 19 Dec 2018 22:47:38 +0000 (UTC) (envelope-from mw@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 5949F74389; Wed, 19 Dec 2018 22:47:38 +0000 (UTC) (envelope-from mw@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 2F9FB1C73E; Wed, 19 Dec 2018 22:47:38 +0000 (UTC) (envelope-from mw@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBJMlcnV049730; Wed, 19 Dec 2018 22:47:38 GMT (envelope-from mw@FreeBSD.org) Received: (from mw@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBJMlcWt049729; Wed, 19 Dec 2018 22:47:38 GMT (envelope-from mw@FreeBSD.org) Message-Id: <201812192247.wBJMlcWt049729@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mw set sender to mw@FreeBSD.org using -f From: Marcin Wojtas Date: Wed, 19 Dec 2018 22:47:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342253 - head/usr.sbin/uefisign X-SVN-Group: head X-SVN-Commit-Author: mw X-SVN-Commit-Paths: head/usr.sbin/uefisign X-SVN-Commit-Revision: 342253 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 5949F74389 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.98 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.98)[-0.979,0]; 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: Wed, 19 Dec 2018 22:47:39 -0000 Author: mw Date: Wed Dec 19 22:47:37 2018 New Revision: 342253 URL: https://svnweb.freebsd.org/changeset/base/342253 Log: Fix alignment issue in uefisign The pe_certificate structure has to be aligned to 8 bytes. [1] Since this is now checked in edk2, any binaries signed with older version of this tool will fail verification. References: [1] https://docs.microsoft.com/en-us/windows/desktop/Debug/pe-format#the-attribute-certificate-table-image-only Submitted by: Kornel Duleba Reviewed by: trasz Obtained from: Semihalf Sponsored by: Stormshield Differential Revision: https://reviews.freebsd.org/D18554 Modified: head/usr.sbin/uefisign/pe.c Modified: head/usr.sbin/uefisign/pe.c ============================================================================== --- head/usr.sbin/uefisign/pe.c Wed Dec 19 22:46:03 2018 (r342252) +++ head/usr.sbin/uefisign/pe.c Wed Dec 19 22:47:37 2018 (r342253) @@ -56,6 +56,8 @@ __FBSDID("$FreeBSD$"); #define __CTASSERT(x, y) typedef char __assert_ ## y [(x) ? 1 : -1] #endif +#define PE_ALIGMENT_SIZE 8 + struct mz_header { uint8_t mz_signature[2]; uint8_t mz_dont_care[58]; @@ -498,19 +500,17 @@ parse(struct executable *x) } static off_t -append(struct executable *x, void *ptr, size_t len) +append(struct executable *x, void *ptr, size_t len, size_t aligment) { off_t off; - /* - * XXX: Alignment. - */ off = x->x_len; - x->x_buf = realloc(x->x_buf, x->x_len + len); + x->x_buf = realloc(x->x_buf, x->x_len + len + aligment); if (x->x_buf == NULL) err(1, "realloc"); memcpy(x->x_buf + x->x_len, ptr, len); - x->x_len += len; + memset(x->x_buf + x->x_len + len, 0, aligment); + x->x_len += len + aligment; return (off); } @@ -522,6 +522,7 @@ update(struct executable *x) struct pe_certificate *pc; struct pe_directory_entry pde; size_t pc_len; + size_t pc_aligment; off_t pc_off; pc_len = sizeof(*pc) + x->x_signature_len; @@ -529,6 +530,11 @@ update(struct executable *x) if (pc == NULL) err(1, "calloc"); + if (pc_len % PE_ALIGMENT_SIZE > 0) + pc_aligment = PE_ALIGMENT_SIZE - (pc_len % PE_ALIGMENT_SIZE); + else + pc_aligment = 0; + #if 0 /* * Note that pc_len is the length of pc_certificate, @@ -545,7 +551,7 @@ update(struct executable *x) pc->pc_type = PE_CERTIFICATE_TYPE; memcpy(&pc->pc_signature, x->x_signature, x->x_signature_len); - pc_off = append(x, pc, pc_len); + pc_off = append(x, pc, pc_len, pc_aligment); #if 0 printf("added signature chunk at offset %zd, len %zd\n", pc_off, pc_len); @@ -554,7 +560,7 @@ update(struct executable *x) free(pc); pde.pde_rva = pc_off; - pde.pde_size = pc_len; + pde.pde_size = pc_len + pc_aligment; memcpy(x->x_buf + x->x_certificate_entry_off, &pde, sizeof(pde)); checksum = compute_checksum(x);