From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-f196.google.com (mail-qk1-f196.google.com [209.85.222.196]) by mail.openembedded.org (Postfix) with ESMTP id 966AC7E6F8 for ; Mon, 7 Oct 2019 18:28:12 +0000 (UTC) Received: by mail-qk1-f196.google.com with SMTP id y144so13555996qkb.7 for ; Mon, 07 Oct 2019 11:28:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fiu-edu.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version:reply-to :content-transfer-encoding; bh=3BtkCkCCPjBtL/O2DWQPEmP2ss+8DEvdHgEN7HppIlI=; b=uWlEd+08aOnsZVZSclHNBmXTr+3gTKWAGRJpfYobhsMbzSasbPsMQjmU+gbpe+TmCy v4jm0Ko37U1R1cUQcTErKEVQ+wHMDMs/gVH1e4183Lf+zesWgr7uah8LFJjqJuPmIoHv FuiRFqKEI/3Wziy1EHY+DgwBbAaXryzFiJqB8Zw0Q2h1Ybt+DggaJYf3hHME7uJ9pASZ GBIl0SXxHoyTdkV3UgN58KsFzA1nkD05UO11k7NMe+iwFETXLefOQcYFmM+NcI2m4yvo wSS6gdkGu6coC8iXseo8M92isIRN5OVozyO0gLd2t/LGWeAmgZ2zixXgcG1L5fDQ0XVH kWBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :reply-to:content-transfer-encoding; bh=3BtkCkCCPjBtL/O2DWQPEmP2ss+8DEvdHgEN7HppIlI=; b=Oi6R75iz+tbPULWZ+URgP0xIi2vXyPsVNiA+MbS9Ut0OSS9zFfNAYOG3DOfCsa2EqX 2R4s7ErErA+VXR/zsWmdNVlFxUfqRgnSOQGkZvlKUtq3NMgLlhE8IRzBLAPA/XPUmBS9 P2TEGKMFmaqGJoOi1+wCnZuHb89rlTM0Syc4dBgbCkoAY8YZCbJJUuWeAjdHxIT1U2cg eCXDY9S9nk/EEc5gsGf6kGQfBA7iZAhCDTP/njKyOdjCJ374bXA1DtGkwBdkVfcDs8c5 NvtBVyPXguivdz2Uwgo1ltrr+V80mHTn16hC1hYAxcPxVfnzO4XJZ6sFSX+DbG2xMdc6 aRvw== X-Gm-Message-State: APjAAAWup3HTexJp8Dre/JRb4AmlJgg2dhlmqMskIJQho12+9KikQqDN g9NHIzoe585xZk7Z6nHvDEbDwaO6q20= X-Google-Smtp-Source: APXvYqzI52HXs/w88/8XvSYhF8oLk9xqFYugjTbnb0iDXBy3uOtwnINA4FFgx2SGvQlWaxtLRntHpQ== X-Received: by 2002:a37:6554:: with SMTP id z81mr7672386qkb.107.1570472892723; Mon, 07 Oct 2019 11:28:12 -0700 (PDT) Received: from muislam-yocto.h0ebkyng4k5ejcojahceueqbfb.cx.internal.cloudapp.net ([40.84.59.7]) by smtp.gmail.com with ESMTPSA id g19sm9904226qtb.2.2019.10.07.11.28.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 07 Oct 2019 11:28:11 -0700 (PDT) From: Muminul Islam X-Google-Original-From: Muminul Islam To: openembedded-core@lists.openembedded.org Date: Mon, 7 Oct 2019 18:28:05 +0000 Message-Id: <20191007182805.48887-1-muislam@microsoft.com> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 Reply-To: muislam@microsoft.com Subject: [thud][PATCH] glibc: Security fis for cve X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Oct 2019 18:28:12 -0000 Content-Transfer-Encoding: 8bit Signed-off-by: Muminul Islam --- .../glibc/glibc/CVE-2019-6488.patch | 269 ++++++++++++++++++ .../glibc/glibc/CVE-2019-7309.patch | 202 +++++++++++++ meta/recipes-core/glibc/glibc_2.28.bb | 2 + 3 files changed, 473 insertions(+) create mode 100644 meta/recipes-core/glibc/glibc/CVE-2019-6488.patch create mode 100644 meta/recipes-core/glibc/glibc/CVE-2019-7309.patch diff --git a/meta/recipes-core/glibc/glibc/CVE-2019-6488.patch b/meta/recipes-core/glibc/glibc/CVE-2019-6488.patch new file mode 100644 index 0000000000..b771ebb361 --- /dev/null +++ b/meta/recipes-core/glibc/glibc/CVE-2019-6488.patch @@ -0,0 +1,269 @@ +From 718016100d889a986c536b595bf6ec0d6ab4b90e Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Fri, 1 Feb 2019 12:17:09 -0800 +Subject: [PATCH] x86-64 memchr/wmemchr: Properly handle the length parameter + [BZ #24097] +Reply-To: muislam@microsoft.com + +On x32, the size_t parameter may be passed in the lower 32 bits of a +64-bit register with the non-zero upper 32 bits. The string/memory +functions written in assembly can only use the lower 32 bits of a +64-bit register as length or must clear the upper 32 bits before using +the full 64-bit register for length. + +This pach fixes memchr/wmemchr for x32. Tested on x86-64 and x32. On +x86-64, libc.so is the same with and withou the fix. + + [BZ #24097] + CVE-2019-6488 + * sysdeps/x86_64/memchr.S: Use RDX_LP for length. Clear the + upper 32 bits of RDX register. + * sysdeps/x86_64/multiarch/memchr-avx2.S: Likewise. + * sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memchr and + tst-size_t-wmemchr. + * sysdeps/x86_64/x32/test-size_t.h: New file. + * sysdeps/x86_64/x32/tst-size_t-memchr.c: Likewise. + * sysdeps/x86_64/x32/tst-size_t-wmemchr.c: Likewise. + +(cherry picked from commit 97700a34f36721b11a754cf37a1cc40695ece1fd) +Signed-off-by: Muminul Islam +--- + NEWS | 1 - + sysdeps/x86_64/memchr.S | 10 ++-- + sysdeps/x86_64/multiarch/memchr-avx2.S | 8 ++- + sysdeps/x86_64/x32/Makefile | 8 +++ + sysdeps/x86_64/x32/test-size_t.h | 35 ++++++++++++ + sysdeps/x86_64/x32/tst-size_t-memchr.c | 72 +++++++++++++++++++++++++ + sysdeps/x86_64/x32/tst-size_t-wmemchr.c | 20 +++++++ + 7 files changed, 148 insertions(+), 6 deletions(-) + create mode 100644 sysdeps/x86_64/x32/test-size_t.h + create mode 100644 sysdeps/x86_64/x32/tst-size_t-memchr.c + create mode 100644 sysdeps/x86_64/x32/tst-size_t-wmemchr.c + +diff --git a/NEWS b/NEWS +index fd14941128..b158973a30 100644 +--- a/NEWS ++++ b/NEWS +@@ -17,7 +17,6 @@ The following bugs are resolved with this release: + [23606] Missing ENDBR32 in sysdeps/i386/start.S + [23679] gethostid: Missing NULL check for gethostbyname_r result + [23717] Fix stack overflow in stdlib/tst-setcontext9 +- + + Version 2.28 + +diff --git a/sysdeps/x86_64/memchr.S b/sysdeps/x86_64/memchr.S +index feef5d4f24..cb320257a2 100644 +--- a/sysdeps/x86_64/memchr.S ++++ b/sysdeps/x86_64/memchr.S +@@ -34,12 +34,16 @@ ENTRY(MEMCHR) + mov %edi, %ecx + + #ifdef USE_AS_WMEMCHR +- test %rdx, %rdx ++ test %RDX_LP, %RDX_LP + jz L(return_null) +- shl $2, %rdx ++ shl $2, %RDX_LP + #else ++# ifdef __ILP32__ ++ /* Clear the upper 32 bits. */ ++ movl %edx, %edx ++# endif + punpcklbw %xmm1, %xmm1 +- test %rdx, %rdx ++ test %RDX_LP, %RDX_LP + jz L(return_null) + punpcklbw %xmm1, %xmm1 + #endif +diff --git a/sysdeps/x86_64/multiarch/memchr-avx2.S b/sysdeps/x86_64/multiarch/memchr-avx2.S +index 5f5e772554..c81da19bf0 100644 +--- a/sysdeps/x86_64/multiarch/memchr-avx2.S ++++ b/sysdeps/x86_64/multiarch/memchr-avx2.S +@@ -40,16 +40,20 @@ + ENTRY (MEMCHR) + # ifndef USE_AS_RAWMEMCHR + /* Check for zero length. */ +- testq %rdx, %rdx ++ test %RDX_LP, %RDX_LP + jz L(null) + # endif + movl %edi, %ecx + /* Broadcast CHAR to YMM0. */ + vmovd %esi, %xmm0 + # ifdef USE_AS_WMEMCHR +- shl $2, %rdx ++ shl $2, %RDX_LP + vpbroadcastd %xmm0, %ymm0 + # else ++# ifdef __ILP32__ ++ /* Clear the upper 32 bits. */ ++ movl %edx, %edx ++# endif + vpbroadcastb %xmm0, %ymm0 + # endif + /* Check if we may cross page boundary with one vector load. */ +diff --git a/sysdeps/x86_64/x32/Makefile b/sysdeps/x86_64/x32/Makefile +index f2ebc24fb0..7d528889c6 100644 +--- a/sysdeps/x86_64/x32/Makefile ++++ b/sysdeps/x86_64/x32/Makefile +@@ -4,3 +4,11 @@ ifeq ($(subdir),math) + # 64-bit llround. Add -fno-builtin-lround to silence the compiler. + CFLAGS-s_llround.c += -fno-builtin-lround + endif ++ ++ifeq ($(subdir),string) ++tests += tst-size_t-memchr ++endif ++ ++ifeq ($(subdir),wcsmbs) ++tests += tst-size_t-wmemchr ++endif +diff --git a/sysdeps/x86_64/x32/test-size_t.h b/sysdeps/x86_64/x32/test-size_t.h +new file mode 100644 +index 0000000000..78a940863e +--- /dev/null ++++ b/sysdeps/x86_64/x32/test-size_t.h +@@ -0,0 +1,35 @@ ++/* Test string/memory functions with size_t in the lower 32 bits of ++ 64-bit register. ++ Copyright (C) 2019 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#define TEST_MAIN ++#include ++ ++/* On x32, parameter_t may be passed in a 64-bit register with the LEN ++ field in the lower 32 bits. When the LEN field of 64-bit register ++ is passed to string/memory function as the size_t parameter, only ++ the lower 32 bits can be used. */ ++typedef struct ++{ ++ union ++ { ++ size_t len; ++ void (*fn) (void); ++ }; ++ void *p; ++} parameter_t; +diff --git a/sysdeps/x86_64/x32/tst-size_t-memchr.c b/sysdeps/x86_64/x32/tst-size_t-memchr.c +new file mode 100644 +index 0000000000..29a3daf102 +--- /dev/null ++++ b/sysdeps/x86_64/x32/tst-size_t-memchr.c +@@ -0,0 +1,72 @@ ++/* Test memchr with size_t in the lower 32 bits of 64-bit register. ++ Copyright (C) 2019 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#ifndef WIDE ++# define TEST_NAME "memchr" ++#else ++# define TEST_NAME "wmemchr" ++#endif /* WIDE */ ++#include "test-size_t.h" ++ ++#ifndef WIDE ++# define MEMCHR memchr ++# define CHAR char ++# define UCHAR unsigned char ++#else ++# include ++# define MEMCHR wmemchr ++# define CHAR wchar_t ++# define UCHAR wchar_t ++#endif /* WIDE */ ++ ++IMPL (MEMCHR, 1) ++ ++typedef CHAR * (*proto_t) (const CHAR*, int, size_t); ++ ++static CHAR * ++__attribute__ ((noinline, noclone)) ++do_memchr (parameter_t a, parameter_t b) ++{ ++ return CALL (&b, a.p, (uintptr_t) b.p, a.len); ++} ++ ++static int ++test_main (void) ++{ ++ test_init (); ++ ++ parameter_t src = { { page_size / sizeof (CHAR) }, buf2 }; ++ parameter_t c = { { 0 }, (void *) (uintptr_t) 0x12 }; ++ ++ int ret = 0; ++ FOR_EACH_IMPL (impl, 0) ++ { ++ c.fn = impl->fn; ++ CHAR *res = do_memchr (src, c); ++ if (res) ++ { ++ error (0, 0, "Wrong result in function %s: %p != NULL", ++ impl->name, res); ++ ret = 1; ++ } ++ } ++ ++ return ret ? EXIT_FAILURE : EXIT_SUCCESS; ++} ++ ++#include +diff --git a/sysdeps/x86_64/x32/tst-size_t-wmemchr.c b/sysdeps/x86_64/x32/tst-size_t-wmemchr.c +new file mode 100644 +index 0000000000..877801d646 +--- /dev/null ++++ b/sysdeps/x86_64/x32/tst-size_t-wmemchr.c +@@ -0,0 +1,20 @@ ++/* Test wmemchr with size_t in the lower 32 bits of 64-bit register. ++ Copyright (C) 2019 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#define WIDE 1 ++#include "tst-size_t-memchr.c" +-- +2.23.0 + diff --git a/meta/recipes-core/glibc/glibc/CVE-2019-7309.patch b/meta/recipes-core/glibc/glibc/CVE-2019-7309.patch new file mode 100644 index 0000000000..43dbdffbea --- /dev/null +++ b/meta/recipes-core/glibc/glibc/CVE-2019-7309.patch @@ -0,0 +1,202 @@ +From af7f46c45a60e6df754fb6258b546917e61ae6f1 Mon Sep 17 00:00:00 2001 +From: "H.J. Lu" +Date: Mon, 4 Feb 2019 08:55:52 -0800 +Subject: [PATCH] x86-64 memcmp: Use unsigned Jcc instructions on size [BZ + #24155] +Reply-To: muislam@microsoft.com + +Since the size argument is unsigned. we should use unsigned Jcc +instructions, instead of signed, to check size. + +Tested on x86-64 and x32, with and without --disable-multi-arch. + + [BZ #24155] + CVE-2019-7309 + * NEWS: Updated for CVE-2019-7309. + * sysdeps/x86_64/memcmp.S: Use RDX_LP for size. Clear the + upper 32 bits of RDX register for x32. Use unsigned Jcc + instructions, instead of signed. + * sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memcmp-2. + * sysdeps/x86_64/x32/tst-size_t-memcmp-2.c: New test. + +(cherry picked from commit 3f635fb43389b54f682fc9ed2acc0b2aaf4a923d) +Signed-off-by: Muminul Islam +--- + sysdeps/x86_64/memcmp.S | 20 +++--- + sysdeps/x86_64/x32/Makefile | 2 +- + sysdeps/x86_64/x32/tst-size_t-memcmp-2.c | 79 ++++++++++++++++++++++++ + 3 files changed, 92 insertions(+), 9 deletions(-) + create mode 100644 sysdeps/x86_64/x32/tst-size_t-memcmp-2.c + +diff --git a/sysdeps/x86_64/memcmp.S b/sysdeps/x86_64/memcmp.S +index bcb4a2e88d..45918d375a 100644 +--- a/sysdeps/x86_64/memcmp.S ++++ b/sysdeps/x86_64/memcmp.S +@@ -21,14 +21,18 @@ + + .text + ENTRY (memcmp) +- test %rdx, %rdx ++#ifdef __ILP32__ ++ /* Clear the upper 32 bits. */ ++ movl %edx, %edx ++#endif ++ test %RDX_LP, %RDX_LP + jz L(finz) + cmpq $1, %rdx +- jle L(finr1b) ++ jbe L(finr1b) + subq %rdi, %rsi + movq %rdx, %r10 + cmpq $32, %r10 +- jge L(gt32) ++ jae L(gt32) + /* Handle small chunks and last block of less than 32 bytes. */ + L(small): + testq $1, %r10 +@@ -156,7 +160,7 @@ L(A32): + movq %r11, %r10 + andq $-32, %r10 + cmpq %r10, %rdi +- jge L(mt16) ++ jae L(mt16) + /* Pre-unroll to be ready for unrolled 64B loop. */ + testq $32, %rdi + jz L(A64) +@@ -178,7 +182,7 @@ L(A64): + movq %r11, %r10 + andq $-64, %r10 + cmpq %r10, %rdi +- jge L(mt32) ++ jae L(mt32) + + L(A64main): + movdqu (%rdi,%rsi), %xmm0 +@@ -216,7 +220,7 @@ L(mt32): + movq %r11, %r10 + andq $-32, %r10 + cmpq %r10, %rdi +- jge L(mt16) ++ jae L(mt16) + + L(A32main): + movdqu (%rdi,%rsi), %xmm0 +@@ -254,7 +258,7 @@ L(ATR): + movq %r11, %r10 + andq $-32, %r10 + cmpq %r10, %rdi +- jge L(mt16) ++ jae L(mt16) + testq $16, %rdi + jz L(ATR32) + +@@ -325,7 +329,7 @@ L(ATR64main): + movq %r11, %r10 + andq $-32, %r10 + cmpq %r10, %rdi +- jge L(mt16) ++ jae L(mt16) + + L(ATR32res): + movdqa (%rdi,%rsi), %xmm0 +diff --git a/sysdeps/x86_64/x32/Makefile b/sysdeps/x86_64/x32/Makefile +index 7d528889c6..c9850beeb5 100644 +--- a/sysdeps/x86_64/x32/Makefile ++++ b/sysdeps/x86_64/x32/Makefile +@@ -6,7 +6,7 @@ CFLAGS-s_llround.c += -fno-builtin-lround + endif + + ifeq ($(subdir),string) +-tests += tst-size_t-memchr ++tests += tst-size_t-memchr tst-size_t-memcmp-2 + endif + + ifeq ($(subdir),wcsmbs) +diff --git a/sysdeps/x86_64/x32/tst-size_t-memcmp-2.c b/sysdeps/x86_64/x32/tst-size_t-memcmp-2.c +new file mode 100644 +index 0000000000..d8ae1a0813 +--- /dev/null ++++ b/sysdeps/x86_64/x32/tst-size_t-memcmp-2.c +@@ -0,0 +1,79 @@ ++/* Test memcmp with size_t in the lower 32 bits of 64-bit register. ++ Copyright (C) 2019 Free Software Foundation, Inc. ++ This file is part of the GNU C Library. ++ ++ The GNU C Library is free software; you can redistribute it and/or ++ modify it under the terms of the GNU Lesser General Public ++ License as published by the Free Software Foundation; either ++ version 2.1 of the License, or (at your option) any later version. ++ ++ The GNU C Library is distributed in the hope that it will be useful, ++ but WITHOUT ANY WARRANTY; without even the implied warranty of ++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ Lesser General Public License for more details. ++ ++ You should have received a copy of the GNU Lesser General Public ++ License along with the GNU C Library; if not, see ++ . */ ++ ++#define TEST_MAIN ++#ifdef WIDE ++# define TEST_NAME "wmemcmp" ++#else ++# define TEST_NAME "memcmp" ++#endif ++ ++#include "test-size_t.h" ++ ++#ifdef WIDE ++# include ++# include ++ ++# define MEMCMP wmemcmp ++# define CHAR wchar_t ++#else ++# define MEMCMP memcmp ++# define CHAR char ++#endif ++ ++IMPL (MEMCMP, 1) ++ ++typedef int (*proto_t) (const CHAR *, const CHAR *, size_t); ++ ++static int ++__attribute__ ((noinline, noclone)) ++do_memcmp (parameter_t a, parameter_t b) ++{ ++ return CALL (&b, a.p, b.p, a.len); ++} ++ ++static int ++test_main (void) ++{ ++ test_init (); ++ ++ parameter_t dest = { { page_size / sizeof (CHAR) }, buf1 }; ++ parameter_t src = { { 0 }, buf2 }; ++ ++ memcpy (buf1, buf2, page_size); ++ ++ CHAR *p = (CHAR *) buf1; ++ p[page_size / sizeof (CHAR) - 1] = (CHAR) 1; ++ ++ int ret = 0; ++ FOR_EACH_IMPL (impl, 0) ++ { ++ src.fn = impl->fn; ++ int res = do_memcmp (dest, src); ++ if (res >= 0) ++ { ++ error (0, 0, "Wrong result in function %s: %i >= 0", ++ impl->name, res); ++ ret = 1; ++ } ++ } ++ ++ return ret ? EXIT_FAILURE : EXIT_SUCCESS; ++} ++ ++#include +-- +2.23.0 + diff --git a/meta/recipes-core/glibc/glibc_2.28.bb b/meta/recipes-core/glibc/glibc_2.28.bb index 0839fa126d..4e6ee4dcab 100644 --- a/meta/recipes-core/glibc/glibc_2.28.bb +++ b/meta/recipes-core/glibc/glibc_2.28.bb @@ -50,6 +50,8 @@ SRC_URI = "${GLIBC_GIT_URI};branch=${SRCBRANCH};name=glibc \ file://CVE-2019-9169.patch \ file://CVE-2016-10739.patch \ file://CVE-2018-19591.patch \ + file://CVE-2019-6488.patch \ + file://CVE-2019-7309.patch \ " NATIVESDKFIXES ?= "" -- 2.23.0