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SUSE:SLE-12-SP5:GA
glibc.10853
0001-Fix-UTF-16-surrogate-handling.-BZ-19727.patch
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File 0001-Fix-UTF-16-surrogate-handling.-BZ-19727.patch of Package glibc.10853
2016-05-25 Stefan Liebler <stli@linux.vnet.ibm.com> [BZ #19727] * iconvdata/utf-16.c (BODY): Report an error if first word is not a valid high surrogate. * iconvdata/utf-32.c (BODY): Report an error if the value is in range of an utf16 surrogate. * iconv/gconv_simple.c (BODY): Likewise. * iconvdata/bug-iconv12.c: New file. * iconvdata/Makefile (tests): Add bug-iconv12. Index: glibc-2.22/iconv/gconv_simple.c =================================================================== --- glibc-2.22.orig/iconv/gconv_simple.c +++ glibc-2.22/iconv/gconv_simple.c @@ -892,7 +892,8 @@ ucs4le_internal_loop_single (struct __gc if (__glibc_likely (wc < 0x80)) \ /* It's an one byte sequence. */ \ *outptr++ = (unsigned char) wc; \ - else if (__glibc_likely (wc <= 0x7fffffff)) \ + else if (__glibc_likely (wc <= 0x7fffffff \ + && (wc < 0xd800 || wc > 0xdfff))) \ { \ size_t step; \ unsigned char *start; \ Index: glibc-2.22/iconvdata/Makefile =================================================================== --- glibc-2.22.orig/iconvdata/Makefile +++ glibc-2.22/iconvdata/Makefile @@ -68,7 +68,7 @@ modules.so := $(addsuffix .so, $(modules ifeq (yes,$(build-shared)) tests = bug-iconv1 bug-iconv2 tst-loading tst-e2big tst-iconv4 bug-iconv4 \ tst-iconv6 bug-iconv5 bug-iconv6 tst-iconv7 bug-iconv8 bug-iconv9 \ - bug-iconv10 + bug-iconv10 bug-iconv12 ifeq ($(have-thread-library),yes) tests += bug-iconv3 endif @@ -301,6 +301,8 @@ $(objpfx)tst-iconv7.out: $(objpfx)gconv- $(addprefix $(objpfx),$(modules.so)) $(objpfx)bug-iconv10.out: $(objpfx)gconv-modules \ $(addprefix $(objpfx),$(modules.so)) +$(objpfx)bug-iconv12.out: $(objpfx)gconv-modules \ + $(addprefix $(objpfx),$(modules.so)) $(objpfx)iconv-test.out: run-iconv-test.sh $(objpfx)gconv-modules \ $(addprefix $(objpfx),$(modules.so)) \ Index: glibc-2.22/iconvdata/bug-iconv12.c =================================================================== --- /dev/null +++ glibc-2.22/iconvdata/bug-iconv12.c @@ -0,0 +1,263 @@ +/* bug 19727: Testing UTF conversions with UTF16 surrogates as input. + Copyright (C) 2016 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 + <http://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <inttypes.h> +#include <iconv.h> +#include <byteswap.h> + +static int +run_conversion (const char *from, const char *to, char *inbuf, size_t inbuflen, + int exp_errno, int line) +{ + char outbuf[16]; + iconv_t cd; + char *inptr; + size_t inlen; + char *outptr; + size_t outlen; + size_t n; + int e; + int fails = 0; + + cd = iconv_open (to, from); + if (cd == (iconv_t) -1) + { + printf ("line %d: cannot convert from %s to %s: %m\n", line, from, to); + return 1; + } + + inptr = (char *) inbuf; + inlen = inbuflen; + outptr = outbuf; + outlen = sizeof (outbuf); + + errno = 0; + n = iconv (cd, &inptr, &inlen, &outptr, &outlen); + e = errno; + + if (exp_errno == 0) + { + if (n == (size_t) -1) + { + puts ("n should be >= 0, but n == -1"); + fails ++; + } + + if (e != 0) + { + printf ("errno should be 0: 'Success', but errno == %d: '%s'\n" + , e, strerror(e)); + fails ++; + } + } + else + { + if (n != (size_t) -1) + { + printf ("n should be -1, but n == %zd\n", n); + fails ++; + } + + if (e != exp_errno) + { + printf ("errno should be %d: '%s', but errno == %d: '%s'\n" + , exp_errno, strerror (exp_errno), e, strerror (e)); + fails ++; + } + } + + iconv_close (cd); + + if (fails > 0) + { + printf ("Errors in line %d while converting %s to %s.\n\n" + , line, from, to); + } + + return fails; +} + +static int +do_test (void) +{ + int fails = 0; + char buf[4]; + + /* This test runs iconv() with UTF character in range of an UTF16 surrogate. + UTF-16 high surrogate is in range 0xD800..0xDBFF and + UTF-16 low surrogate is in range 0xDC00..0xDFFF. + Converting from or to UTF-xx has to report errors in those cases. + In UTF-16, surrogate pairs with a high surrogate in front of a low + surrogate is valid. */ + + /* Use RUN_UCS4_UTF32_INPUT to test conversion ... + + ... from INTERNAL to UTF-xx[LE|BE]: + Converting from UCS4 to UTF-xx[LE|BE] first converts UCS4 to INTERNAL + without checking for UTF-16 surrogate values + and then converts from INTERNAL to UTF-xx[LE|BE]. + The latter conversion has to report an error in those cases. + + ... from UTF-32[LE|BE] to INTERNAL: + Converting directly from UTF-32LE to UTF-8|16 is needed, + because e.g. s390x has iconv-modules which converts directly. */ +#define RUN_UCS4_UTF32_INPUT(b0, b1, b2, b3, err, line) \ + buf[0] = b0; \ + buf[1] = b1; \ + buf[2] = b2; \ + buf[3] = b3; \ + fails += run_conversion ("UCS4", "UTF-8", buf, 4, err, line); \ + fails += run_conversion ("UCS4", "UTF-16LE", buf, 4, err, line); \ + fails += run_conversion ("UCS4", "UTF-16BE", buf, 4, err, line); \ + fails += run_conversion ("UCS4", "UTF-32LE", buf, 4, err, line); \ + fails += run_conversion ("UCS4", "UTF-32BE", buf, 4, err, line); \ + fails += run_conversion ("UTF-32BE", "WCHAR_T", buf, 4, err, line); \ + fails += run_conversion ("UTF-32BE", "UTF-8", buf, 4, err, line); \ + fails += run_conversion ("UTF-32BE", "UTF-16LE", buf, 4, err, line); \ + fails += run_conversion ("UTF-32BE", "UTF-16BE", buf, 4, err, line); \ + buf[0] = b3; \ + buf[1] = b2; \ + buf[2] = b1; \ + buf[3] = b0; \ + fails += run_conversion ("UTF-32LE", "WCHAR_T", buf, 4, err, line); \ + fails += run_conversion ("UTF-32LE", "UTF-8", buf, 4, err, line); \ + fails += run_conversion ("UTF-32LE", "UTF-16LE", buf, 4, err, line); \ + fails += run_conversion ("UTF-32LE", "UTF-16BE", buf, 4, err, line); + + /* Use UCS4/UTF32 input of 0xD7FF. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xD7, 0xFF, 0, __LINE__); + + /* Use UCS4/UTF32 input of 0xD800. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xD8, 0x00, EILSEQ, __LINE__); + + /* Use UCS4/UTF32 input of 0xDBFF. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDB, 0xFF, EILSEQ, __LINE__); + + /* Use UCS4/UTF32 input of 0xDC00. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDC, 0x00, EILSEQ, __LINE__); + + /* Use UCS4/UTF32 input of 0xDFFF. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDF, 0xFF, EILSEQ, __LINE__); + + /* Use UCS4/UTF32 input of 0xE000. */ + RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xE0, 0x00, 0, __LINE__); + + + /* Use RUN_UTF16_INPUT to test conversion from UTF16[LE|BE] to INTERNAL. + Converting directly from UTF-16 to UTF-8|32 is needed, + because e.g. s390x has iconv-modules which converts directly. + Use len == 2 or 4 to specify one or two UTF-16 characters. */ +#define RUN_UTF16_INPUT(b0, b1, b2, b3, len, err, line) \ + buf[0] = b0; \ + buf[1] = b1; \ + buf[2] = b2; \ + buf[3] = b3; \ + fails += run_conversion ("UTF-16BE", "WCHAR_T", buf, len, err, line); \ + fails += run_conversion ("UTF-16BE", "UTF-8", buf, len, err, line); \ + fails += run_conversion ("UTF-16BE", "UTF-32LE", buf, len, err, line); \ + fails += run_conversion ("UTF-16BE", "UTF-32BE", buf, len, err, line); \ + buf[0] = b1; \ + buf[1] = b0; \ + buf[2] = b3; \ + buf[3] = b2; \ + fails += run_conversion ("UTF-16LE", "WCHAR_T", buf, len, err, line); \ + fails += run_conversion ("UTF-16LE", "UTF-8", buf, len, err, line); \ + fails += run_conversion ("UTF-16LE", "UTF-32LE", buf, len, err, line); \ + fails += run_conversion ("UTF-16LE", "UTF-32BE", buf, len, err, line); + + /* Use UTF16 input of 0xD7FF. */ + RUN_UTF16_INPUT (0xD7, 0xFF, 0xD7, 0xFF, 4, 0, __LINE__); + + /* Use [single] UTF16 high surrogate 0xD800 [with a valid character behind]. + And check an UTF16 surrogate pair [without valid low surrogate]. */ + RUN_UTF16_INPUT (0xD8, 0x0, 0x0, 0x0, 2, EINVAL, __LINE__); + RUN_UTF16_INPUT (0xD8, 0x0, 0xD7, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xD8, 0x0, 0xD8, 0x0, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xD8, 0x0, 0xE0, 0x0, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xD8, 0x0, 0xDC, 0x0, 4, 0, __LINE__); + + /* Use [single] UTF16 high surrogate 0xDBFF [with a valid character behind]. + And check an UTF16 surrogate pair [without valid low surrogate]. */ + RUN_UTF16_INPUT (0xDB, 0xFF, 0x0, 0x0, 2, EINVAL, __LINE__); + RUN_UTF16_INPUT (0xDB, 0xFF, 0xD7, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDB, 0xFF, 0xDB, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDB, 0xFF, 0xE0, 0x0, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDB, 0xFF, 0xDF, 0xFF, 4, 0, __LINE__); + + /* Use single UTF16 low surrogate 0xDC00 [with a valid character behind]. + And check an UTF16 surrogate pair [without valid high surrogate]. */ + RUN_UTF16_INPUT (0xDC, 0x0, 0x0, 0x0, 2, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDC, 0x0, 0xD7, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xD8, 0x0, 0xDC, 0x0, 4, 0, __LINE__); + RUN_UTF16_INPUT (0xD7, 0xFF, 0xDC, 0x0, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDC, 0x0, 0xDC, 0x0, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xE0, 0x0, 0xDC, 0x0, 4, EILSEQ, __LINE__); + + /* Use single UTF16 low surrogate 0xDFFF [with a valid character behind]. + And check an UTF16 surrogate pair [without valid high surrogate]. */ + RUN_UTF16_INPUT (0xDF, 0xFF, 0x0, 0x0, 2, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDF, 0xFF, 0xD7, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDB, 0xFF, 0xDF, 0xFF, 4, 0, __LINE__); + RUN_UTF16_INPUT (0xD7, 0xFF, 0xDF, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xDF, 0xFF, 0xDF, 0xFF, 4, EILSEQ, __LINE__); + RUN_UTF16_INPUT (0xE0, 0x0, 0xDF, 0xFF, 4, EILSEQ, __LINE__); + + /* Use UCS4/UTF32 input of 0xE000. */ + RUN_UTF16_INPUT (0xE0, 0x0, 0xE0, 0x0, 4, 0, __LINE__); + + + /* Use RUN_UTF8_3BYTE_INPUT to test conversion from UTF-8 to INTERNAL. + Converting directly from UTF-8 to UTF-16|32 is needed, + because e.g. s390x has iconv-modules which converts directly. */ +#define RUN_UTF8_3BYTE_INPUT(b0, b1, b2, err, line) \ + buf[0] = b0; \ + buf[1] = b1; \ + buf[2] = b2; \ + fails += run_conversion ("UTF-8", "WCHAR_T", buf, 3, err, line); \ + fails += run_conversion ("UTF-8", "UTF-16LE", buf, 3, err, line); \ + fails += run_conversion ("UTF-8", "UTF-16BE", buf, 3, err, line); \ + fails += run_conversion ("UTF-8", "UTF-32LE", buf, 3, err, line); \ + fails += run_conversion ("UTF-8", "UTF-32BE", buf, 3, err, line); + + /* Use UTF-8 input of 0xD7FF. */ + RUN_UTF8_3BYTE_INPUT (0xED, 0x9F, 0xBF, 0, __LINE__); + + /* Use UTF-8 input of 0xD800. */ + RUN_UTF8_3BYTE_INPUT (0xED, 0xA0, 0x80, EILSEQ, __LINE__); + + /* Use UTF-8 input of 0xDBFF. */ + RUN_UTF8_3BYTE_INPUT (0xED, 0xAF, 0xBF, EILSEQ, __LINE__); + + /* Use UTF-8 input of 0xDC00. */ + RUN_UTF8_3BYTE_INPUT (0xED, 0xB0, 0x80, EILSEQ, __LINE__); + + /* Use UTF-8 input of 0xDFFF. */ + RUN_UTF8_3BYTE_INPUT (0xED, 0xBF, 0xBF, EILSEQ, __LINE__); + + /* Use UTF-8 input of 0xF000. */ + RUN_UTF8_3BYTE_INPUT (0xEF, 0x80, 0x80, 0, __LINE__); + + return fails > 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" Index: glibc-2.22/iconvdata/utf-16.c =================================================================== --- glibc-2.22.orig/iconvdata/utf-16.c +++ glibc-2.22/iconvdata/utf-16.c @@ -295,6 +295,12 @@ gconv_end (struct __gconv_step *data) { \ uint16_t u2; \ \ + if (__glibc_unlikely (u1 >= 0xdc00)) \ + { \ + /* This is no valid first word for a surrogate. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (2); \ + } \ + \ /* It's a surrogate character. At least the first word says \ it is. */ \ if (__glibc_unlikely (inptr + 4 > inend)) \ @@ -329,6 +335,12 @@ gconv_end (struct __gconv_step *data) } \ else \ { \ + if (__glibc_unlikely (u1 >= 0xdc00)) \ + { \ + /* This is no valid first word for a surrogate. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (2); \ + } \ + \ /* It's a surrogate character. At least the first word says \ it is. */ \ if (__glibc_unlikely (inptr + 4 > inend)) \ Index: glibc-2.22/iconvdata/utf-32.c =================================================================== --- glibc-2.22.orig/iconvdata/utf-32.c +++ glibc-2.22/iconvdata/utf-32.c @@ -239,7 +239,7 @@ gconv_end (struct __gconv_step *data) if (swap) \ u1 = bswap_32 (u1); \ \ - if (__glibc_unlikely (u1 >= 0x110000)) \ + if (__glibc_unlikely (u1 >= 0x110000 || (u1 >= 0xd800 && u1 < 0xe000))) \ { \ /* This is illegal. */ \ STANDARD_FROM_LOOP_ERR_HANDLER (4); \
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