GNU C Library NEWS -- history of user-visible changes.
-Copyright (C) 1992-2016 Free Software Foundation, Inc.
+Copyright (C) 1992-2017 Free Software Foundation, Inc.
See the end for copying conditions.
Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
using `glibc' in the "product" field.
\f
+Version 2.26
+
+[Add important changes here]
+
+Security related changes:
+
+ [Add security related changes here]
+
+The following bugs are resolved with this release:
+
+ [The release manager will add the list generated by
+ scripts/list-fixed-bugs.py just before the release.]
+
+\f
+Version 2.25
+
+* The feature test macro __STDC_WANT_LIB_EXT2__, from ISO/IEC TR
+ 24731-2:2010, is supported to enable declarations of functions from that
+ TR. Note that not all functions from that TR are supported by the GNU C
+ Library.
+
+* The feature test macro __STDC_WANT_IEC_60559_BFP_EXT__, from ISO/IEC TS
+ 18661-1:2014, is supported to enable declarations of functions and macros
+ from that TS. Note that not all features from that TS are supported by
+ the GNU C Library.
+
+* The feature test macro __STDC_WANT_IEC_60559_FUNCS_EXT__, from ISO/IEC TS
+ 18661-4:2015, is supported to enable declarations of functions and macros
+ from that TS. Note that most features from that TS are not supported by
+ the GNU C Library.
+
+* The nonstandard feature selection macros _REENTRANT and _THREAD_SAFE are
+ now treated as compatibility synonyms for _POSIX_C_SOURCE=199506L.
+ Since the GNU C Library defaults to a much newer revision of POSIX, this
+ will only affect programs that specifically request an old conformance
+ mode. For instance, a program compiled with -std=c89 -D_REENTRANT will
+ see a change in the visible declarations, but a program compiled with
+ just -D_REENTRANT, or -std=c99 -D_POSIX_C_SOURCE=200809L -D_REENTRANT,
+ will not.
+
+ Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+ defined by all multithreaded code, but glibc has not required this for
+ many years.
+
+* The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated. This
+ means that in a future release, the macros “major”, “minor”, and “makedev”
+ will only be available from <sys/sysmacros.h>.
+
+ These macros are not part of POSIX nor XSI, and their names frequently
+ collide with user code; see for instance glibc bug 19239 and Red Hat bug
+ 130601. <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code
+ presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the
+ problem.
+
+* New <fenv.h> features from TS 18661-1:2014 are added to libm: the
+ fesetexcept, fetestexceptflag, fegetmode and fesetmode functions, the
+ femode_t type and the FE_DFL_MODE and FE_SNANS_ALWAYS_SIGNAL macros.
+
+* Integer width macros from TS 18661-1:2014 are added to <limits.h>:
+ CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, SHRT_WIDTH, USHRT_WIDTH, INT_WIDTH,
+ UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH; and to
+ <stdint.h>: INT8_WIDTH, UINT8_WIDTH, INT16_WIDTH, UINT16_WIDTH,
+ INT32_WIDTH, UINT32_WIDTH, INT64_WIDTH, UINT64_WIDTH, INT_LEAST8_WIDTH,
+ UINT_LEAST8_WIDTH, INT_LEAST16_WIDTH, UINT_LEAST16_WIDTH,
+ INT_LEAST32_WIDTH, UINT_LEAST32_WIDTH, INT_LEAST64_WIDTH,
+ UINT_LEAST64_WIDTH, INT_FAST8_WIDTH, UINT_FAST8_WIDTH, INT_FAST16_WIDTH,
+ UINT_FAST16_WIDTH, INT_FAST32_WIDTH, UINT_FAST32_WIDTH, INT_FAST64_WIDTH,
+ UINT_FAST64_WIDTH, INTPTR_WIDTH, UINTPTR_WIDTH, INTMAX_WIDTH,
+ UINTMAX_WIDTH, PTRDIFF_WIDTH, SIG_ATOMIC_WIDTH, SIZE_WIDTH, WCHAR_WIDTH,
+ WINT_WIDTH.
+
+* New <math.h> features are added from TS 18661-1:2014:
+
+ - Signaling NaN macros: SNANF, SNAN, SNANL.
+
+ - Nearest integer functions: roundeven, roundevenf, roundevenl, fromfp,
+ fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf,
+ fromfpxl, ufromfpx, ufromfpxf, ufromfpxl.
+
+ - llogb functions: the llogb, llogbf and llogbl functions, and the
+ FP_LLOGB0 and FP_LLOGBNAN macros.
+
+ - Max-min magnitude functions: fmaxmag, fmaxmagf, fmaxmagl, fminmag,
+ fminmagf, fminmagl.
+
+ - Comparison macros: iseqsig.
+
+ - Classification macros: iscanonical, issubnormal, iszero.
+
+ - Total order functions: totalorder, totalorderf, totalorderl,
+ totalordermag, totalordermagf, totalordermagl.
+
+ - Canonicalize functions: canonicalize, canonicalizef, canonicalizel.
+
+ - NaN functions: getpayload, getpayloadf, getpayloadl, setpayload,
+ setpayloadf, setpayloadl, setpayloadsig, setpayloadsigf, setpayloadsigl.
+
+* The functions strfromd, strfromf, and strfroml, from ISO/IEC TS 18661-1:2014,
+ are added to libc. They convert a floating-point number into string.
+
+* Most of glibc can now be built with the stack smashing protector enabled.
+ It is recommended to build glibc with --enable-stack-protector=strong.
+ Implemented by Nick Alcock (Oracle).
+
+* The function explicit_bzero, from OpenBSD, has been added to libc. It is
+ intended to be used instead of memset() to erase sensitive data after use;
+ the compiler will not optimize out calls to explicit_bzero even if they
+ are "unnecessary" (in the sense that no _correct_ program can observe the
+ effects of the memory clear).
+
+* On ColdFire, MicroBlaze, Nios II and SH3, the float_t type is now defined
+ to float instead of double. This does not affect the ABI of any libraries
+ that are part of the GNU C Library, but may affect the ABI of other
+ libraries that use this type in their interfaces.
+
+* On x86_64, when compiling with -mfpmath=387 or -mfpmath=sse+387, the
+ float_t and double_t types are now defined to long double instead of float
+ and double. These options are not the default, and this does not affect
+ the ABI of any libraries that are part of the GNU C Library, but it may
+ affect the ABI of other libraries that use this type in their interfaces,
+ if they are compiled or used with those options.
+
+* The getentropy and getrandom functions, and the <sys/random.h> header file
+ have been added.
+
+* The buffer size for byte-oriented stdio streams is now limited to 8192
+ bytes by default. Previously, on Linux, the default buffer size on most
+ file systems was 4096 bytes (and thus remains unchanged), except on
+ network file systems, where the buffer size was unpredictable and could be
+ as large as several megabytes.
+
+* The <sys/quota.h> header now includes the <linux/quota.h> header. Support
+ for the Linux quota interface which predates kernel version 2.4.22 has
+ been removed.
+
+* The malloc_get_state and malloc_set_state functions have been removed.
+ Already-existing binaries that dynamically link to these functions will
+ get a hidden implementation in which malloc_get_state is a stub. As far
+ as we know, these functions are used only by GNU Emacs and this change
+ will not adversely affect already-built Emacs executables. Any undumped
+ Emacs executables, which normally exist only during an Emacs build, should
+ be rebuilt by re-running “./configure; make” in the Emacs build tree.
+
+* The “ip6-dotint” and “no-ip6-dotint” resolver options, and the
+ corresponding RES_NOIP6DOTINT flag from <resolv.h> have been removed.
+ “no-ip6-dotint” had already been the default, and support for the
+ “ip6-dotint” option was removed from the Internet in 2006.
+
+* The "ip6-bytestring" resolver option and the corresponding RES_USEBSTRING
+ flag from <resolv.h> have been removed. The option relied on a
+ backwards-incompatible DNS extension which was never deployed on the
+ Internet.
+
+* The flags RES_AAONLY, RES_PRIMARY, RES_NOCHECKNAME, RES_KEEPTSIG,
+ RES_BLAST defined in the <resolv.h> header file have been deprecated.
+ They were already unimplemented.
+
+* The "inet6" option in /etc/resolv.conf and the RES_USE_INET6 flag for
+ _res.flags are deprecated. The flag was standardized in RFC 2133, but
+ removed again from the IETF name lookup interface specification in RFC
+ 2553. Applications should use getaddrinfo instead.
+
+* DNSSEC-related declarations and definitions have been removed from the
+ <arpa/nameser.h> header file, and libresolv will no longer attempt to
+ decode the data part of DNSSEC record types. Previous versions of glibc
+ only implemented minimal support for the previous version of DNSSEC, which
+ is incompatible with the currently deployed version.
+
+* The resource record type classification macros ns_t_qt_p, ns_t_mrr_p,
+ ns_t_rr_p, ns_t_udp_p, ns_t_xfr_p have been removed from the
+ <arpa/nameser.h> header file because the distinction between RR types and
+ meta-RR types is not officially standardized, subject to revision, and
+ thus not suitable for encoding in a macro.
+
+* The types res_sendhookact, res_send_qhook, re_send_rhook, and the qhook
+ and rhook members of the res_state type in <resolv.h> have been removed.
+ The glibc stub resolver did not support these hooks, but the header file
+ did not reflect that.
+
+* For multi-arch support it is recommended to use a GCC which has
+ been built with support for GNU indirect functions. This ensures
+ that correct debugging information is generated for functions
+ selected by IFUNC resolvers. This support can either be enabled by
+ configuring GCC with '--enable-gnu-indirect-function', or by
+ enabling it by default by setting 'default_gnu_indirect_function'
+ variable for a particular architecture in the GCC source file
+ 'gcc/config.gcc'.
+
+* GDB pretty printers have been added for mutex and condition variable
+ structures in POSIX Threads. When installed and loaded in gdb these pretty
+ printers show various pthread variables in human-readable form when read
+ using the 'print' or 'display' commands in gdb.
+
+* Tunables feature added to allow tweaking of the runtime for an application
+ program. This feature can be enabled with the '--enable-tunables' configure
+ flag. The GNU C Library manual has details on usage and README.tunables has
+ instructions on adding new tunables to the library.
+
+* A new version of condition variables functions have been implemented in
+ the NPTL implementation of POSIX Threads to provide stronger ordering
+ guarantees.
+
+* A new version of pthread_rwlock functions have been implemented to use a more
+ scalable algorithm primarily through not using a critical section anymore to
+ make state changes.
+
+Security related changes:
+
+* On ARM EABI (32-bit), generating a backtrace for execution contexts which
+ have been created with makecontext could fail to terminate due to a
+ missing .cantunwind annotation. This has been observed to lead to a hang
+ (denial of service) in some Go applications compiled with gccgo. Reported
+ by Andreas Schwab. (CVE-2016-6323)
+
+* The DNS stub resolver functions would crash due to a NULL pointer
+ dereference when processing a query with a valid DNS question type which
+ was used internally in the implementation. The stub resolver now uses a
+ question type which is outside the range of valid question type values.
+ (CVE-2015-5180)
+
+The following bugs are resolved with this release:
+
+ [4099] stdio: Overly agressive caching by stream i/o functions.
+ [7065] build: Support building glibc with -fstack-protector or -fstack-
+ protector-all
+ [9842] localedata: en_CA: incorrect date format
+ [13165] nptl: pthread_cond_wait() can consume a signal that was sent
+ before it started waiting
+ [14139] manual: Do not hardcode platform names in manual/libm-err-tab.pl
+ [15765] nptl: sem_open is wrongly a cancellation point
+ [16421] network: IN6_IS_ADDR_UNSPECIFIED can use undefined s6_addr32
+ [16458] libc: endian.h and netinet/in.h byte order macros return values of
+ wrong type
+ [16628] dynamic-link: Segfault after a binary without pthread dlopen()s a
+ library linked with pthread
+ [16630] nptl: Use SYSENTER for pthread_cond_broadcast/signal() (i.e. fix
+ "FIXME: Ingo" issue)
+ [16907] libc: <argp.h> compiled with --std=cXX disables __attribute__
+ [17252] libc: getrandom and getentropy syscall
+ [17730] malloc: thread-local storage is sometimes improperly free()'d
+ after being __libc_memalign()'d
+ [18241] stdio: failed fseek on memstream does not set errno and can fail
+ when it shouldnt
+ [18243] nptl: sem_wait, sem_timedwait are cancellation points shm_open is
+ not
+ [18463] nptl: pthread_cond_broadcast issue when surrounded by
+ PTHREAD_PRIO_INHERIT mutex on ARM
+ [18784] network: res_query and related function crash for special record
+ type queries (CVE-2015-5180)
+ [19380] math: strtod does not raise "inexact"
+ [19387] string: Integer overflow in memchr
+ [19390] string: Integer overflow in strncat
+ [19398] build: linknamespace tests fail with massively parallel build
+ [19402] nptl: Deadlock with robust shared mutex and asynchronous
+ termination
+ [19469] malloc: M_PERTURB in test-skeleton.c invalidates malloc tests
+ [19473] malloc: Turn malloc_get_state etc. in compatibility symbols
+ [19514] libc: [PATCH] Fix spelling errors in spelling
+ "implement"/"implementation" in several places
+ [19582] network: Deprecate RES_USE_INET6
+ [19673] manual: clog10 docs appear to be erroneous
+ [19810] dynamic-link: dlopen with both RTLD_NOLOAD and RTLD_NODELETE
+ causes a segmentation fault
+ [19826] libc: invalid pointer returned from __tls_get_addr with static
+ linking
+ [20016] network: resolv: Remove hooks support from the API
+ [20019] dynamic-link: NULL pointer dereference in libc.so.6 IFUNC due to
+ uninitialized GOT
+ [20033] math: [x86_64] vectorized math function don't call the __finite
+ versions
+ [20116] nptl: use after free in pthread_create
+ [20181] stdio: open_memstream(): writes not at end of stream corrupt data
+ [20292] dynamic-link: Comparison in elf/dl-open.c _dl_addr_inside_object
+ is always true.
+ [20311] nptl: please install proc_service.h
+ [20366] libc: Compilation errors in installed headers in strict-compliance
+ modes
+ [20370] malloc: malloc: Arena free list management is still racy
+ (incorrect fix in bug 19243)
+ [20386] libc: assert (X = 0) does not result in GCC warning
+ [20432] malloc: malloc: Minimize interface required for interposition
+ [20435] libc: Missing unwind info in __startcontext causes infinite loop
+ in _Unwind_Backtrace (CVE-2016-6323)
+ [20444] hurd: recvmsg: PF_LOCAL sockets and msg_name lead to SIGLOST
+ [20452] nptl: Addition of sysdep.o to libpthread.a breaks relinking
+ libpthread.a
+ [20455] math: [powerpc] fesetexceptflag fails to clear FE_INVALID
+ [20459] localedata: et_EE: locale has wrong {p,n}_cs_precedes value
+ [20477] network: resolv: incorrect double-checked locking related to
+ _res_hconf
+ [20478] libc: libc_ifunc macro and similar usages leads to false debug-
+ information.
+ [20495] math: x86_64 performance degradation due to AVX/SSE transition
+ penalty
+ [20497] localedata: lt_LT: LC_TIME d_fmt used is obsolete
+ [20508] dynamic-link: _dl_runtime_resolve_avx/_dl_runtime_profile_avx512
+ cause transition penalty
+ [20517] math: sparcv9 missing fdiml compat symbol
+ [20524] manual: strverscmp is inconsistent
+ [20525] libc: <sys/quota.h> should be based on kernel headers
+ [20539] math: GCC 7 -static -lm fails to link at -O3
+ [20554] libc: ld: bss-plt forced due to /usr/lib/libc_nonshared.a(ppc-
+ mcount.oS)
+ [20558] string: POSIX bcopy/bzero decls do not implement Object Size
+ Checking
+ [20591] network: Remove obsolete DNSSEC support
+ [20592] network: DNS resource record type classification macros in
+ <arpa/nameser.h> are incorrect
+ [20593] network: Update DNS RR type definitions
+ [20611] network: getaddrinfo accepts invalid numeric scope IDs
+ [20615] build: glibc build fails when using --with-cpu=power9 --enable-
+ multi-arch
+ [20629] network: libresolv: Remove support for bitstring labels
+ (RES_USEBSTRING)
+ [20647] libc: GLIBC quitting every program - glibc on Pentium-S leads to
+ assertion: "maxidx >= 2"
+ [20660] math: [arm] Use VSQRT
+ [20662] libc: checking whether x86_64-pc-linux-gnu-gcc implicitly enables
+ -fstack-protector no (32bit gcc 6.2.0 pie and ssp enable)
+ [20689] libc: Test for FMA should also check for AVX.
+ [20707] glob: gl_pathv entries not set to NULL with GLOB_DOOFFS
+ [20715] math: iszero macro breaks existing code
+ [20718] math: [powerpc] copysignl raises "invalid" for sNaN
+ [20728] libc: powerpc: Missing TOC stub in clone
+ [20729] build: glibc-2.24 fails to build for i486 with -Os
+ [20750] build: Build fails with default PIE enabled gcc-6.x
+ [20768] math: [alpha] sqrt fegetenv namespace
+ [20785] libc: binutils 2.28 fails to assemble power6/memset.S file in
+ glibc
+ [20787] math: float_t is defined as float incorrectly on x86_64 even if
+ __FLT_EVAL_METHOD__ is 2
+ [20790] network: rpcgen buffer overrun in get_prog_declaration
+ [20822] nptl: race condition in __lll_unlock_elision on powerpc
+ [20829] libc: crypt snprintf namespace
+ [20847] libc: tst-vfork3 failure
+ [20855] math: Default bits/mathdef.h has inappropriate float_t
+ [20859] math: [sh4] FP_ILOGB0 invalid
+ [20864] localedata: iconv: cp936 missing single-byte euro sign (0x80,
+ U+20AC), not same as GBK
+ [20915] dynamic-link: global-dynamic TLS broken on aarch64
+ [20916] math: pow handling of sNaN arguments
+ [20918] build: Building with --enable-nss-crypt fails tst-linkall-static.
+ [20919] math: Bad pow (qNaN, 0) result with -lieee
+ [20940] math: hypot sNaN handling
+ [20947] math: fmax, fmin sNaN handling
+ [20956] libc: debug/tst-backtrace3-6 don't work with -O3 anymore
+ [20964] network: sunrpc: Stack-based buffer overflow in getrpcport with
+ RES_USE_INET6
+ [20971] string: powerpc64/power7 memchr overflows internal pointer check
+ [20973] nptl: robust mutexes: Lost wake-ups
+ [20974] locale: bs_BA: yesexpr/noexpr regexes accept any character
+ [20978] nis: strlen on null pointer in nss_nisplus
+ [20985] nptl: robust mutexes: lowlevelrobustlock assembly on x86 blocks on
+ wrong condition
+ [21014] string: i686 memchr overflows internal pointer check
+ [21019] libc: [mips] n32 lseek incorrect on overflow
+ [21022] libc: [microblaze] __backtrace get_frame_size namespace
+ [21026] libc: [MIPS] readahead syscall is broken on n64
+ [21028] math: Fallback fesetexceptflag should always succeed
+ [21045] libc: [powerpc-nofpu] swapcontext does not restore signal mask
+ [21047] math: arm: fpu_control.h: _FPU_GETCW/_FPU_SETCW is rejected by
+ clang
+ [21053] libc: [SH] Namespace pollution from sys/ucontext.h
+ [21061] librt: [microblaze] librt lost clock_* exports
+ [21073] libc: tunables: insecure environment variables passed to
+ subprocesses with AT_SECURE
+ [21081] string: Missing vzeroupper in memset-vec-unaligned-erms.S
+\f
Version 2.24
* The minimum Linux kernel version that this version of the GNU C Library
* The deprecated __malloc_initialize_hook variable has been removed from the
API.
+* The long unused localedef --old-style option has been removed. It hasn't
+ done anything in over 16 years. Scripts using this option can safely
+ drop it.
+
+* nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf are added to
+ libm. They are defined by TS 18661 and IEEE754-2008. The nextup functions
+ return the next representable value in the direction of positive infinity
+ and the nextdown functions return the next representable value in the
+ direction of negative infinity. These are currently enabled as GNU
+ extensions.
+
Security related changes:
* An unnecessary stack copy in _nss_dns_getnetbyname_r was removed. It
flooded with crafted ICMP and UDP messages. Reported by Aldy Hernandez'
alloca plugin for GCC. (CVE-2016-4429)
+* The IPv6 name server management code in libresolv could result in a memory
+ leak for each thread which is created, performs a failing naming lookup,
+ and exits. Over time, this could result in a denial of service due to
+ memory exhaustion. Reported by Matthias Schiffer. (CVE-2016-5417)
+
The following bugs are resolved with this release:
- [The release manager will add the list generated by
- scripts/list-fixed-bugs.py just before the release.]
+ [1170] localedata: ne_NP: update Nepali locale definition file
+ [3629] manual: stpcpy description in string.texi refers to MS-DOG instead
+ of MS-DOS.
+ [6527] malloc: [powerpc] Malloc alignment insufficient for PowerPC
+ [6796] math: fdim() does not set errno on overflow
+ [10354] libc: posix_spawn should use vfork() in more cases than presently
+ [11213] localedata: localedata: add copyright disclaimer to locale files
+ [12143] localedata: chr_US: new Cherokee locale
+ [12450] localedata: sgs_LT: new locale
+ [12676] localedata: ln_CD: new locale
+ [13237] localedata: LC_ADDRESS.country_name: update all locales w/latest
+ CLDR data
+ [13304] math: fma, fmaf, fmal produce wrong results
+ [14259] build: --localedir arg to configure is ignored
+ [14499] nptl: Does posix_spawn invoke atfork handlers / use vfork?
+ [14750] libc: Race condition in posix_spawn vfork usage vs signal handlers
+ [14934] localedata: es_CL: wrong first weekday chilean locale
+ [15262] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of
+ romanisation
+ [15263] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of 1/0
+ and +/-
+ [15264] localedata: LC_MESSAGES.yesstr/nostr: lacking in many locales
+ [15368] nptl: raise() is not async-signal-safe
+ [15479] math: ceil, floor, round and trunc raise inexact exception
+ [15578] localedata: kk_KZ: various updates
+ [16003] localedata: pap_AN: punt old locale
+ [16137] localedata: iw_IL: punt old locale
+ [16190] localedata: eo: new esperanto locale
+ [16374] localedata: lv_LV: change currency symbol in LC_MONETARY to euro
+ [16742] malloc: race condition: pthread_atfork() called before first
+ malloc() results in unexpected locking behaviour/deadlocks
+ [16975] localedata: LC_MESSAGES.yesexpr/noexpr: revisit capitalization in
+ all locales
+ [16983] localedata: postal_fmt does not allow %l and %n modifiers
+ [17565] localedata: pt_PT: wrong (work-)week start
+ [17899] math: [powerpc] floorl returns negative zero with FE_DOWNWARD
+ [17950] build: Build fails with -msse
+ [18205] localedata: be_BY*: wrong first_weekday and first_workday
+ [18433] libc: posix_spawn does not return correctly upon failure to
+ execute
+ [18453] localedata: charmaps/IBM875: incorrect codes
+ [18712] string: bits/string2.h incompatible with -O2 -Werror=packed
+ -Wsystem-headers
+ [18896] localedata: he_IL: improvements for currency
+ [18911] localedata: ro_RO: Correcting week day name for "Tuesday" in
+ Romanian locale data
+ [18960] locale: s390: _nl_locale_subfreeres uses larl opcode on misaligned
+ symbol
+ [19056] libc: Deprecate readdir_r
+ [19133] localedata: pt_*: days & months should be lowercase in Portuguese
+ language
+ [19198] localedata: nl_NL: small improvements for Dutch locales
+ [19257] network: Per-thread memory leak in __res_vinit with IPv6
+ nameservers (CVE-2016-5417)
+ [19269] build: tst-audit4 and tst-audit10 failures with gcc-6 on non avx
+ machine
+ [19400] locale: Language missing in "iso-639.def", trivial fix in
+ description
+ [19431] malloc: Deadlock between fflush, getdelim, and fork
+ [19505] libc: Incorrect file descriptor validity checks in
+ posix_spawn_file_actions_add{open,close,dup2}
+ [19509] dynamic-link: dlsym, dlvsym do not report errors through dlerror
+ when using RTLD_NEXT
+ [19512] locale: Stale `#ifndef HAVE_BUILTIN_EXPECT' in
+ `intl/{gettextP,loadinfo}.h'
+ [19534] libc: execle, execlp may use malloc
+ [19568] localedata: *_CH: Swiss locales have inconsistent start of week
+ [19573] network: res_nclose and __res_maybe_init disagree about name
+ server initialization, breaking Hesiod
+ [19575] localedata: Status of GB18030 tables
+ [19581] localedata: sr_* date_fmt string contains additional newline
+ [19583] string: SSSE3_Fast_Copy_Backward flag needs to be enabled for AMD
+ Excavator core
+ [19592] math: [ldbl-128ibm] ceill incorrect in non-default rounding modes
+ [19593] math: [ldbl-128ibm] truncl incorrect in non-default rounding modes
+ [19594] math: [ldbl-128ibm] roundl incorrect in non-default rounding modes
+ [19595] math: [ldbl-128ibm] fmodl incorrect for results in subnormal
+ double range
+ [19602] math: [ldbl-128ibm] fmodl handling of equal arguments with low
+ part zero incorrect
+ [19603] math: [ldbl-128ibm] remainderl, remquol incorrect sign handling in
+ equality tests
+ [19610] dynamic-link: ldconfig -X removes stale symbolic links
+ [19613] libc: s390x (64 bit) macro expansion WCOREDUMP and others
+ [19633] locale: strfmon_l applies global locale to number formatting
+ [19642] network: Memory leak in getnameinfo
+ [19648] libc: test-skeleton.c: Do not set RLIMIT_DATA
+ [19653] libc: Potential for NULL pointer dereference (CWE-476) in
+ glibc-2.22
+ [19654] math: [x86_64] Need testcase for BZ #19590 fix
+ [19671] localedata: Missing Sanity Check for malloc() in 'tst-fmon.c' &
+ 'tst-numeric.c'
+ [19674] math: [ldbl-128ibm] powl incorrect overflow handling
+ [19677] math: [ldbl-128ibm] remainderl equality test incorrect for zero
+ low part
+ [19678] math: [ldbl-128ibm] nextafterl, nexttowardl incorrect sign of zero
+ result
+ [19679] dynamic-link: gcc-4.9.3 C++ exception handling broken due to
+ unaligned stack
+ [19726] locale: Converting UCS4LE to INTERNAL with iconv() does not update
+ pointers and lengths in error-case.
+ [19727] locale: Converting from/to UTF-xx with iconv() does not always
+ report errors on UTF-16 surrogates values.
+ [19755] nscd: nscd assertion failure in gc
+ [19758] dynamic-link: Typo in EXTRA_LD_ENVVARS for x86-64
+ [19759] libc: mempcpy shouldn't be inlined
+ [19762] dynamic-link: HAS_CPU_FEATURE/HAS_ARCH_FEATURE are easy to misuse
+ [19765] libc: s390 needs an optimized mempcpy
+ [19779] glob: glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect
+ NAME_MAX limit assumption (CVE-2016-1234)
+ [19783] build: benchtests don't support --enable-hardcoded-path-in-tests
+ [19787] network: Missing and incorrect truncation checks in getnameinfo
+ [19790] math: [ldbl-128ibm] nearbyintl incorrect in non-default rounding
+ modes
+ [19791] network: Assertion failure in res_query.c with un-connectable name
+ server addresses
+ [19792] libc: MIPS: backtrace yields infinite backtrace with makecontext
+ [19822] math: libm.so install clobbers old version
+ [19825] network: resolv: send_vc can return uninitialized data in second
+ response to getaddrinfo
+ [19830] network: nss_dns: should check RDATA length against buffer length
+ [19831] network: nss_dns: getaddrinfo returns uninitialized data when
+ confronted with A/AAAA records of invalid size
+ [19837] nss: nss_db: No retries for some long lines with a larger buffer
+ [19848] math: powl(10,n) for n=-4,-5,-6,-7 is off by more than 1 ULP
+ [19853] stdio: Printing IBM long double in decimal with high precision is
+ sometimes incorrect
+ [19860] build: x86_64: compile errors for tst-audit10 and tst-auditmod10b
+ [19861] nptl: libpthread IFUNC resolver for fork can lead to crash
+ [19862] network: resolv, nss_dns: Remove remaining logging of unexpected
+ record types
+ [19865] network: Assertion failure or memory leak in
+ _nss_dns_getcanonname_r
+ [19868] network: nss_dns: netent code does not skip over non-PTR records
+ [19879] network: nss_dns: Stack overflow in getnetbyname implementation
+ (CVE-2016-3075)
+ [19881] string: Improve x86-64 memset
+ [19907] string: Incorrect memcpy tests
+ [19916] dynamic-link: S390: fprs/vrs are not saved/restored while
+ resolving symbols
+ [19925] libc: termios.h XCASE namespace
+ [19928] string: memmove-vec-unaligned-erms.S is slow with large data size
+ [19929] libc: limits.h NL_NMAX namespace
+ [19931] stdio: Memory leak in vfprintf
+ [19957] libc: clone(CLONE_VM) access invalid parent memory
+ [19963] localedata: en_IL: New locale
+ [19989] stdio: stdio.h cuserid namespace
+ [19994] network: getaddrinfo does not restore RES_USE_INET6 flag in
+ gethosts
+ [19996] locale: langinfo.h nl_langinfo_l namespace
+ [20005] stdio: fflush on a file opened with fmemopen resets position to 0
+ [20010] network: getaddrinfo: Stack overflow in hostent translation
+ (CVE-2016-3706)
+ [20012] stdio: libio: fmemopen append mode failure
+ [20014] stdio: stdio.h namespace for pre-threads POSIX
+ [20017] network: resolv: Use gmtime_r instead of gmtime in p_secstodate
+ [20023] libc: fcntl.h timespec namespace
+ [20024] math: [x86_64] vectorized sincos trashes the stack
+ [20031] network: nss_hesiod: Heap overflow in get_txt_records
+ [20041] time: sys/time.h timespec namespace
+ [20043] libc: unistd.h missing cuserid for UNIX98 and before
+ [20044] libc: unistd.h missing pthread_atfork for UNIX98
+ [20051] libc: ttyslot in wrong header under wrong conditions
+ [20054] libc: gethostname not declared for XPG4
+ [20055] libc: termios.h missing tcgetsid for XPG4
+ [20072] dynamic-link: x86 init_cpu_features is called twice in static
+ executable
+ [20073] libc: sys/stat.h fchmod namespace
+ [20074] libc: stdlib.h rand_r namespace
+ [20076] libc: sys/stat.h missing S_IFSOCK, S_ISSOCK for XPG4
+ [20094] libc: stdlib.h should not declare grantpt, ptsname, unlockpt for
+ XPG3
+ [20111] libc: struct sockaddr_storage cannot be aggregate-copied
+ [20112] network: sunrpc: stack (frame) overflow in Sun RPC clntudp_call
+ (CVE-2016-4429)
+ [20115] string: Extra alignment in memset-vec-unaligned-erms.S
+ [20119] libc: Wrong mask for processors level type from CPUID
+ [20139] dynamic-link: Upper part of zmm is zeroed if Glibc is built with
+ AS not supporting AVX512
+ [20151] math: [ldbl-128/ldbl-128ibm] j0l, j1l, y0l, y1l return sNaN for
+ sNaN argument
+ [20153] math: [ldbl-128ibm] sqrtl (sNaN) returns sNaN
+ [20156] math: [ldbl-128ibm] ceill, rintl etc. return sNaN for sNaN
+ argument
+ [20157] math: [powerpc] fabsl (sNaN) wrongly raises "invalid"
+ [20160] math: [powerpc] ceil, rint etc. return sNaN for sNaN input
+ [20178] libc: posix_spawn{p} should not call exit
+ [20191] stdio: libio: vtables hardening
+ [20195] string: FMA4 detection requires CPUID execution with register
+ eax=0x80000001
+ [20198] libc: quick_exit incorrectly destroys C++11 thread objects.
+ [20205] math: [i386/x86_64] nextafterl incorrect incrementing negative
+ subnormals
+ [20212] math: acos (sNaN) returns sNaN
+ [20213] math: asin (sNaN) returns sNaN
+ [20214] network: Linux header sync with linux/in6.h and ipv6.h again.
+ [20218] math: [i386] asinhl (sNaN) returns sNaN
+ [20219] math: [i386] atanhl (sNaN) returns sNaN
+ [20222] stdio: fopencookie: Mangle function pointers
+ [20224] math: [i386] cbrtl (sNaN) returns sNaN
+ [20225] math: ldexp, scalbn, scalbln return sNaN for sNaN input
+ [20226] math: [i386/x86_64] expl, exp10l, expm1l return sNaN for sNaN
+ input
+ [20227] math: [i386/x86_64] logl (sNaN) returns sNaN
+ [20228] math: [i386/x86_64] log10l (sNaN) returns sNaN
+ [20229] math: [i386/x86_64] log1pl (sNaN) returns sNaN
+ [20232] math: [ldbl-128] expm1l (sNaN) returns sNaN
+ [20233] math: [ldbl-128ibm] expm1l (sNaN) returns sNaN
+ [20234] math: [ldbl-128ibm] log1pl (sNaN) returns sNaN
+ [20235] math: [i386/x86_64] log2l (sNaN) returns sNaN
+ [20237] nss: nss_db: get*ent segfaults without preceding set*ent
+ [20240] math: modf (sNaN) returns sNaN
+ [20248] libc: debug/tst-longjump_chk2 calls printf from a signal handler
+ [20250] math: frexp (sNaN) returns sNaN
+ [20252] math: atan2 (sNaN, qNaN) fails to raise "invalid"
+ [20255] math: [i386] fdim, fdimf return with excess range and precision /
+ double rounding
+ [20256] math: [i386/x86_64] fdiml returns sNaN for sNaN input
+ [20260] string: ../sysdeps/x86/bits/string.h:1092:3: error: array
+ subscript is below array bounds [-Werror=array-bounds]
+ [20262] nis: _nss_nis_initgroups_dyn always returns NSS_STATUS_NOTFOUND
+ [20263] nptl: robust mutex deadlocks if other thread requests timedlock
+ (Only arm/linux)
+ [20277] libc: $dp is not initialized correctly in sysdeps/hppa/start.S
+ [20284] malloc: malloc: Corrupt arena avoidance causes unnecessary mmap
+ fallbacks
+ [20296] math: [i386/x86_64] scalbl returns sNaN for sNaN input, missing
+ "invalid" exceptions
+ [20314] nptl: make[4]: *** [/usr/include/stdlib.h] Error 1
+ [20316] localedata: id_ID: Februari instead of Pebruari
+ [20327] string: POWER8 strcasecmp returns incorrect result
+ [20347] math: Failure: Test: j0_downward (0xap+0)
+ [20348] libc: FAIL: misc/tst-preadvwritev64
+ [20349] libc: 64-bit value is passed differently in p{readv,writev}{64}
+ [20350] libc: There is no test for p{read,write}64
+ [20357] math: Incorrect cos result for 1.5174239687223976
+ [20384] build: Don't run libmvec-sincos-avx* tests on non avx machines
\f
Version 2.23
----------------------------------------------------------------------
Copyright information:
-Copyright (C) 1992-2016 Free Software Foundation, Inc.
+Copyright (C) 1992-2017 Free Software Foundation, Inc.
Permission is granted to anyone to make or distribute verbatim copies
of this document as received, in any medium, provided that the
projects / thirdparty / glibc.git / blobdiff