[glibc] Created tag 'glibc-2.39'

[glibc] Created tag 'glibc-2.39'

[Andreas K. Huttel]

The signed tag 'glibc-2.39' was created pointing to:

 ef321e23c2... Create ChangeLog.old/ChangeLog.28

Tagger: Andreas K. Hüttel <dilfridge@gentoo.org>
Date: Wed Jan 31 01:46:40 2024 +0100

    The GNU C Library version 2.39 is now available
    
    The GNU C Library
    =================
    
    The GNU C Library version 2.39 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2017.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.39 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    Distributions are encouraged to track the release/* branches
    corresponding to the releases they are using.  The release
    branches will be updated with conservative bug fixes and new
    features while retaining backwards compatibility.
    
    NEWS for version 2.39
    =====================
    
    Major new features:
    
    * A new tunable, glibc.cpu.plt_rewrite, can be used to enable PLT
      rewrite on x86-64.  When enabled with non-lazy binding, the dynamic
      linker will rewrite indirect branches in PLT with direct branches.
    
    * Sync with Linux kernel 6.6 shadow stack interface.  The --enable-cet
      configure option is only supported on x86-64.
    
    * struct statvfs now has an f_type member, equal to the f_type statfs member;
      on the Hurd this was always available under a reserved name,
      and under Linux a spare has been allocated: it was always zero
      in previous versions of glibc, and zero is not a valid result.
    
    * On Linux, the functions posix_spawnattr_getcgroup_np and
      posix_spawnattr_setcgroup_np have been added, along with the
      POSIX_SPAWN_SETCGROUP flag.  They allow posix_spawn and posix_spawnp
      to set the cgroupv2 in the new process in a race-free manner.  These
      functions are GNU extensions and require a kernel with clone3 support.
    
    * On Linux, the pidfd_spawn and pidfd_spawp functions have been added.
      They have a similar prototype and semantic as posix_spawn, but instead of
      returning a process ID, they return a file descriptor that can be used
      along other pidfd functions (like pidfd_send_signal, poll, or waitid).
      The pidfd functionality avoids the issue of PID reuse with the traditional
      posix_spawn interface.
    
    * On Linux, the pidfd_getpid function has been added.  It allows retrieving
      the process ID associated with the process file descriptor created by
      pid_spawn, fork_np, or pidfd_open.
    
    * scanf-family functions now support the wN format length modifiers for
      arguments pointing to types intN_t, int_leastN_t, uintN_t or
      uint_leastN_t (for example, %w32d to read int32_t or int_least32_t in
      decimal, or %w32x to read uint32_t or uint_least32_t in hexadecimal)
      and the wfN format length modifiers for arguments pointing to types
      int_fastN_t or uint_fastN_t, as specified in draft ISO C2X.
    
    * A new tunable, glibc.mem.decorate_maps, can be used to add additional
      information on underlying memory allocated by the glibc (for instance,
      on thread stack created by pthread_create or memory allocated by
      malloc).
    
    * The <stdbit.h> header has been added from ISO C2X, with
      stdc_leading_zeros, stdc_leading_ones, stdc_trailing_zeros,
      stdc_trailing_ones, stdc_first_leading_zero, stdc_first_leading_one,
      stdc_first_trailing_zero, stdc_first_trailing_one, stdc_count_zeros,
      stdc_count_ones, stdc_has_single_bit, stdc_bit_width, stdc_bit_floor
      and stdc_bit_ceil function families, each having functions for
      unsigned char, unsigned short, unsigned int, unsigned long int and
      unsigned long long int, and a type-generic macro.
    
    * On AArch64 new symbols were added to libmvec and now math.h has
      annotations to allow GCC 9 or newer to auto-vectorize calls to the
      following scalar math functions when -ffast-math is specified:
      acos, acosf, asin, asinf, atan, atanf, atan2, atan2f, cos, cosf,
      exp, expf, exp10, exp10f, exp2, exp2f, expm1, expm1f, log, logf,
      log10, log10f, log1p, log1pf, log2, log2f, sin, sinf, tan, tanf.
    
    Deprecated and removed features, and other changes affecting compatibility:
    
    * The ldconfig program now skips file names containing ';' or ending in
      ".dpkg.tmp" or ".dpkg.new", to avoid examining temporary files created
      by the RPM and dpkg package managers.
    
    * libcrypt has been removed from the GNU C Library.  The configure
      options "--enable-crypt" and "--enable-nss-crypt" are no longer
      available.  <crypt.h>, libcrypt.a, and libcrypt.so.1 will not be
      installed.  For now <unistd.h> continues to declare the crypt
      function by default, to avoid introducing vulnerabilities into
      existing applications due to a missing prototype.  This declaration
      is deprecated and may be removed in a future glibc release.
    
      The replacement for libcrypt is libxcrypt, maintained separately from
      GNU libc, but available under compatible licensing terms, and providing
      binary backward compatibility with the former libcrypt.  It is currently
      distributed from <https://github.com/besser82/libxcrypt/>.
    
      As a consequence of this removal, GNU libc no longer makes any use of
      the NSS cryptography library (Network Security Services; not to be
      confused with Name Service Switch).  Distributors of binary packages
      of GNU libc are advised to check whether their build processes can be
      simplified.
    
    * The dynamic linker calls the malloc and free functions in more cases
      during TLS access if a shared object with dynamic TLS is loaded and
      unloaded.  This can result in an infinite recursion if a malloc
      replacement library or its dependencies use dynamic TLS instead of
      initial-exec TLS.
    
    * The ia64*-*-linux-gnu configurations are no longer supported.
    
    Changes to build and runtime requirements:
    
    * Building on LoongArch requires at a minimum binutils 2.41 for vector
      instructions.
    
    Security related changes:
    
    The following CVEs were fixed in this release, details of which can be
    found in the advisories directory of the release tarball:
    
      GLIBC-SA-2023-0002:
        getaddrinfo: Stack read overflow in no-aaaa mode (CVE-2023-4527)
    
      GLIBC-SA-2023-0003:
        getaddrinfo: Potential use-after-free (CVE-2023-4806)
    
      GLIBC-SA-2023-0004:
        tunables: local privilege escalation through buffer overflow
        (CVE-2023-4911)
    
      GLIBC-SA-2024-0001:
        syslog: Heap buffer overflow in __vsyslog_internal (CVE-2023-6246)
    
      GLIBC-SA-2024-0002:
        syslog: Heap buffer overflow in __vsyslog_internal (CVE-2023-6779)
    
      GLIBC-SA-2024-0003:
        syslog: Integer overflow in __vsyslog_internal (CVE-2023-6780)
    
    The following bugs are resolved with this release:
    
      [14522] localedata: fy_DE: LC_IDENTIFICATION data looks weird
      [19305] libc: qsort() should return early if (nmemb <= 1)
      [19479] localedata: gbm_IN: new Garhwali Locale
      [19924] dynamic-link: TLS performance degradation after dlopen
      [19956] localedata: ssy_ER: rename from aa_ER@saaho
      [21719] libc: stdlib/msort : optimizing merge sort
      [22526] localedata: th_TH  LC_COLLATE does not use copy "iso14651_t1"
      [23012] localedata: el_GR: Greece now uses the 24h format for time
      [23172] localedata: miq_NI: Provide actually abbreviated month names
      [24006] localedata: Cyclic dependencies via copy in locales
      [24013] localedata: am_pm definitions for es_ES
      [24386] localedata: crh_RU: new locale
      [24877] localedata: [Redundant Data] Remove redundant data between
        en_NZ and en_AU
      [25868] localedata: Incorrect trailing spaces in weekday names for
        nn_NO
      [26752] localedata: Please add the new locale zgh_MA
      [27069] dynamic-link: Need a way to tell if a tunable is set by user
      [27163] localedata: Error on test glk_IR with localedef
      [27312] localedata: su_ID: new Sundanese locale
      [27547] manual: "Summary of malloc-Related Functions" shows wrong
        argument order for  `aligned_alloc` and `memalign`
      [27574] libc: glibc should probably not define __WORDSIZE=64 for
        __sparcv9
      [27601] localedata: License information update in
        localedata/locales/ast_ES
      [28558] localedata: it_IT LC_MONETARY outdated p_cs_precedes and
        n_cs_precedes
      [28787] localedata: Add information for Occitan
      [29039] dynamic-link: Corrupt DTV after reuse of a TLS module ID
        following dlclose with unused TLS
      [29486] localedata: New Zealand locales (en_NZ & mi_NZ) first day of
        week should be Monday
      [29504] localedata: Incorrect/misleading Time Format For ms_MY (AM/PM)
      [29506] localedata: UTF-8 HANGUL SYLLABLE bugs
      [30349] libc: Support returning a pidfd from posix_spawn()
      [30412] localedata: d_t_fmt in id_ID uses %r placeholder but am_pm and
        t_fmt_ampm are undefined
      [30605] localedata: New locale for Komi language
      [30649] localedata: [PATCH] Add transliteration of common emojis to
        smileys
      [30694] locale: The iconv program no longer tells the user which given
        encoding name was wrong
      [30709] nscd: nscd fails to build with cleanup handler if built with
        -fexceptions
      [30737] libc: fdopendir() is not robust - returns bogus DIR* instead
        of flagging an error
      [30740] build: [m68k] undefined reference to
        `_wordcopy_fwd_dest_aligned'
      [30745] libc: Slight bug in cache info codes for x86
      [30750] network: Unaligned accesses in resolver
      [30773] math: [m68k] busybox awk is broken (lshift.S related)
      [30789] libc: [2.38 Regression] sem_open will fail on multithreaded
        scenarios when semaphore file doesn't exist (O_CREAT)
      [30800] nscd: Improper assert in prune_cache triggers if clock jumps
        backwards
      [30804] libc: F_GETLK, F_SETLK, and F_SETLKW value change for
        powerpc64 with -D_FILE_OFFSET_BITS=64
      [30842] network: Stack read overflow in getaddrinfo in no-aaaa mode
        (CVE-2023-4527)
      [30843] network: potential use-after-free in getcanonname
        (CVE-2023-4806)
      [30854] localedata: Update locale data to Unicode 15.1.0
      [30884] network: Memory leak in getaddrinfo after fix for bug 30843
        (CVE-2023-5156)
      [30932] libc: Fortify Source has false-positives when too many files
        are open
      [30945] malloc: Core affinity setting incurs lock contentions between
        threads
      [30960] math: signed integer overflow in
        glibc/sysdeps/s390/fpu/feenablxcpt.c
      [30964] locale: Number grouping check mishandles multibyte thousands
        separator
      [30981] dynamic-link: dlclose does not properly implement force-first
        handling
      [30988] math: fesetexcept raises floating-point exception traps on
        ppc, ppc64, ppc64le
      [30989] math: fesetexcept raises floating-point exception traps on
        i386
      [30990] libc: fesetexceptflag raises floating-point exception traps on
        i386, x86_64
      [30998] math: fesetexceptflag clears too many floating-point exception
        flags on alpha
      [31019] manual: The documentation of feenableexcept is incomplete
      [31022] math: feupdateenv (FE_DFL_ENV) crashes on riscv
      [31035] libc: Library search path terminates on relative non-directory
        name
      [31042] libc: [s390x] .init and .fini padding
      [31068] libc: sysdeps: sparc: invalid data access in memset due to
        regression
      [31078] manual: Code example in "Noncanonical Mode Example" has unused
        'char *name;'
      [31086] localedata: Errors in Tibetan, Dzongkha data
      [31113] string: Wrong unwind information for rawmemchr on aarch64
      [31151] libc: [RISC-V] missing support for profile/audit PLT setup
      [31163] nss: getaddrinfo returns EAI_NONAME in oom situation
      [31183] stdio: Wide stream buffer size reduced MB_LEN_MAX bytes after
        bug 17522 fix
      [31184] dynamic-link: FAIL: elf/tst-tlsgap
      [31185] dynamic-link: Incorrect thread point access in
        _dl_tlsdesc_undefweak and _dl_tlsdesc_dynamic
      [31187] dynamic-link: Some CET tests fail with GCC 14
      [31204] localedata: Fix decimal point and thousands separator for
        uz_UZ
      [31205] localedata: Inconsistent (mon_)grouping formats
      [31218] dynamic-link: PLT rewrite overflows large displacement on x32
      [31221] localedata: Add localedata for ISO code "tok" (Toki Pona)
      [31230] dynamic-link: PLT rewrite failed without SELinux
      [31239] localedata: anp_IN locale: abbreviated month names are the
        same as the full month names
      [31244] nptl: pthread_cancel hangs on sparc32
      [31257] localedata: Sync with  CLDR: “Turkey” -> “Türkiye”
      [31266] string: sparc: string/tst-memmove-overflow fails on 32-bit
        sparcv9
      [31276] libc: Wrong condition for heap allocation in qsort_r
    
    Release Notes
    =============
    
    https://sourceware.org/glibc/wiki/Release/2.39
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adam Jackson
    Adhemerval Zanella Netto
    Amrita H S
    Andreas K. Hüttel
    Andreas Larsson
    Andreas Schwab
    Arjun Shankar
    Aurelien Jarno
    Bruno Haible
    Bruno Victal
    Carlos O'Donell
    Christoph Müllner
    Colin Leroy-Mira
    DJ Delorie
    Daniel Cederman
    Dennis Brendel
    Flavio Cruz
    Florian Weimer
    Frederic Cambus
    Gaël PORTAY
    Guy-Fleury Iteriteka
    H.J. Lu
    Hector Martin
    Jan Palus
    Janet Blackquill
    Joe Ramsay
    Joe Simmons-Talbott
    John David Anglin
    Joseph Myers
    Kir Kolyshkin
    Kuan-Wei Chiu
    Ludwig Rydberg
    MAHESH BODAPATI
    Mahesh Bodapati
    Manjunath Matti
    Mark Wielaard
    Matthew Sterrett
    Maxim Kuvyrkov
    Mike FABIAN
    Noah Goldstein
    Paul Eggert
    Qingqing Li
    Romain Geissler
    RushingAlien
    Sajan Karumanchi
    Sam James
    Samuel Thibault
    Sergei Trofimovich
    Sergey Bugaev
    Sergio Durigan Junior
    Siddhesh Poyarekar
    Simon Chopin
    Stefan Liebler
    Sunil K Pandey
    Szabolcs Nagy
    Tobias Klauser
    Valery Ushakov
    Volker Weißmann
    Wilco Dijkstra
    Xi Ruoyao
    Yang Yujie
    Yanzhang Wang
    Ying Huang
    caiyinyu
    dengjianbo
    lijianglin
    наб
    
    We would like to call out the following and thank them for their
    tireless patch review:
    
    Adhemerval Zanella
    Alejandro Colomar
    Andreas K. Hüttel
    Andreas Schwab
    Arjun Shankar
    Carlos O'Donell
    DJ Delorie
    Florian Weimer
    H.J. Lu
    Joe Simmons-Talbott
    Mike Fabian
    Noah Goldstein
    Paul E. Murphy
    Peter Bergner
    Premachandra Mallappa
    Rajalakshmi Srinivasaraghavan
    Samuel Thibault
    Siddhesh Poyarekar
    Stefan Liebler
    Sunil K Pandey
    Szabolcs Nagy
    
    --
    Andreas K. Hüttel
    dilfridge@gentoo.org
    Gentoo Linux developer
    (council, toolchain, base-system, perl, releng)
    https://wiki.gentoo.org/wiki/User:Dilfridge
    https://www.akhuettel.de/