diff options
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 186 |
1 files changed, 177 insertions, 9 deletions
@@ -5,6 +5,33 @@ See the end for copying conditions. Please send GNU C library bug reports via <https://sourceware.org/bugzilla/> using `glibc' in the "product" field. +Version 2.43 + +Major new features: + + [Add new features here] + +Deprecated and removed features, and other changes affecting compatibility: + + [Add deprecations, removals and changes affecting compatibility here] + +Changes to build and runtime requirements: + + [Add changes to build and runtime requirements here] + +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: + + [The release manager will add the list generated by + scripts/process-advisories.sh just before the release.] + +The following bugs were resolved with this release: + + [The release manager will add the list generated by + scripts/list-fixed-bugs.py just before the release.] + Version 2.42 Major new features: @@ -19,24 +46,59 @@ Major new features: * On Linux, the pthread_gettid_np function has been added. -* The ISO C2Y family of unsigned abs functions, i.e. - uabs, ulabs, ullabs and uimaxabs, are now supported. +* The ISO C2Y family of unsigned abs functions, i.e. uabs, ulabs, + ullabs, and uimaxabs, is now supported. * On Linux, the <termios.h> interface now supports arbitrary baud rates; speed_t is redefined to simply be the baud rate specified as an unsigned int, which matches the kernel interface. +* The thread-local cache in malloc (tcache) now supports caching of + large blocks. This feature can be enabled by setting the tunable + glibc.malloc.tcache_max to a larger value (max 4194304). Tcache is + also significantly faster for small sizes. + +* A new configure option, "--enable-sframe", can be used to enable + SFrame support of the GNU C Libraries. SFrame is a new stack trace + information format which can be used by backtrace. It requires + binutils with a minimum version of 2.45. + +* Support for lightweight stack guard pages via madvise and the + MADV_GUARD_INSTALL flag has been added to pthread_create. + +* Additional optimized and correctly rounded mathematical functions have + been imported from the CORE-MATH project, in particular acospif, + asinpif, atanpif, atan2pif, cospif, sinpif, tanpif. + +* The testsuite has been significantly extended, including coverage of + the functionality of the printf and scanf function families in many + variants. + +* The manual has been significantly extended and updated, particularly + the threads, terminal, filesystem, resource, and math chapters. + +* Code has been added to detect the x86-64 Intel Arrow Lake, Panther + Lake, Clearwater Forest, and Diamond Rapids microarchitectures. + +* Regarding S390, support for the new z17 platform has been added. + Deprecated and removed features, and other changes affecting compatibility: -* The glibc.rtld.execstack now supports a compatibility mode to allow - programs that require an executable stack through dynamic loaded - shared libraries. +* The glibc.rtld.execstack tunable now supports a compatibility mode to + allow programs that require an executable stack through dynamically + loaded shared libraries. * On Linux, the <termio.h> header and the definition of struct termio in <sys/ioctl.h> have been removed. The termio interface has been obsolete since the very first version of POSIX.1 in 1988, replaced with <termios.h>. +* The support for TX lock elision of pthread mutexes has been deprecated + on all architectures and will be removed in the next release. + +* On AArch64 Linux targets supporting the Scalable Matrix Extension + (SME), setjmp and sigsetjmp will disable the ZA state of SME. + Changes to build and runtime requirements: * GCC 12.1 or later is now required to build the GNU C Library. @@ -48,13 +110,119 @@ 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: - [The release manager will add the list generated by - scripts/process-advisories.sh just before the release.] + GLIBC-SA-2025-0001: + assert: Buffer overflow when printing assertion failure message + (CVE-2025-0395) + + GLIBC-SA-2025-0003: + power10: strcmp fails to save and restore nonvolatile vector + registers (CVE-2025-5702) + + GLIBC-SA-2025-0004: + power10: strncmp fails to save and restore nonvolatile vector + registers (CVE-2025-5745) + + GLIBC-SA-2025-0005: + posix: Fix double-free after allocation failure in regcomp + (CVE-2025-8058) The following bugs were resolved with this release: - [The release manager will add the list generated by - scripts/list-fixed-bugs.py just before the release.] + [5994] stdio: fflush after ungetc on seekable input stream + [12724] stdio: fclose violates POSIX 2008 on seekable input streams + [25263] dynamic-link: ldd and ld.so fail to resolve $ORIGIN with cross + dir symlink + [27880] nptl: Please provide a pthread pid accessor + [29190] dynamic-link: Symbols with version hash zero lead to crashes, + not matched correctly + [29459] stdio: fwrite does not return EPIPE when underlying write + fails with EPIPE. + [31791] nss: [Regression] nss: memory for >8 elements in nsswitch.conf + is not freed + [32058] libc: qsort leaks memory if C++ exception is thrown from + comparison function + [32269] dynamic-link: RISC-V IFUNC resolver cannot access gp pointer + [32369] stdio: fflush(NULL) doesn't properly flush files opened in + read mode + [32411] math: THREEp96 seems wrong + [32412] dynamic-link: Initial DTV is reallocated using main realloc in + auditing mode + [32483] locale: ctype.h macros segfault in multithreaded programs with + multiple libc.so + [32529] stdio: fseek failure on file opened with "rm" mode after + ungetc + [32535] stdio: fflush failure on file opened with "rm" mode after + ungetc + [32541] libc: getenv cannot be overridden in static builds + [32574] libc: pthread_attr_getstacksize/pthread_attr_getstack return + incorrect main stack size + [32612] dynamic-link: [aarch64 PAC] _dl_tlsdesc_dynamic can't be + unwound through with _Unwind_Backtrace + [32626] math: math: log10p1f is not correctly rounded + [32627] math: math: sinhf is not correctly rounded + [32630] math: math: tanf is not correctly rounded for all rounding + modes + [32653] dynamic-link: Review options for improving both security and + backwards compatibility of glibc 2.41 dlopen / execstack handling + [32694] math: wrong clang version 3.4 prereq checks in bits/floatn.h + for __float128 support, should be 3.9 + [32708] libc: Inclusion of sys/mount.h triggers many gcc warnings + using -Wshift-overflow=2 -Wsystem-headers + [32711] math: math: remainder incorrect sign of zero result + [32717] libc: glibc tests fail when bfd is built with --enable-error- + execstack=yes + [32723] math: [2.41 Regression] /usr/include/bits/floatn.h doesn't + work with Intel SYCL compiler + [32763] dynamic-link: Static PIE with more than one PT_LOAD segments + at offset 0 segfault + [32777] crypt: The performance of the rand() function degradation + [32781] libc: Inccorect attribute access for sched_getattr + [32782] nptl: Race conditions in pthread cancellation causing crash + [32786] nptl: pthread_cond_* symbols should probably have had a + version bump in 2.41 + [32795] nptl: aio_suspend_time64 confuses CLOCK_MONOTONIC and + CLOCK_REALTIME + [32810] dynamic-link: Immediate crash on x86-64 when running with + GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC + [32823] libc: make[2]: *** [../Rules:248: + /home/dave/gnu/glibc/objdir/elf/tst-origin] Error 1 + [32897] dynamic-link: pthread_getattr_np fails when executable stack + tunable is set + [32918] math: math: atanhf triggers UB + [32919] math: math: coshf triggers UB + [32920] math: math: logf triggers UB + [32921] math: math: sinhf triggers UB + [32922] math: math: cbrtf triggers UB + [32923] math: math: cospif triggers UB + [32924] math: math: erfcf triggers UB + [32925] math: math: sinpif triggers UB + [32932] libc: riscv: __riscv_hwprobe function attributes are incorrect + [32947] libc: stdlib: wrong iovec array size on __libc_message_impl + [32980] manual: getopt_long_only does not check long options first, as + the manual claims + [32981] ports: elf/tst-execstack-prog-static-tunable fails on + sparc64-linux-gnu + [32987] libc: New tst-dlopen-sgid test FAILs + [32996] malloc: i386 TLS helper functions don't preserve XMM registers + [33035] libc: [2.27 regression] Linux: __close_nocancel_nostatus + clobbers errno + [33056] string: Power 10 strcmp clobbers nonvolatile vector registers + (CVE-2025-5702) + [33059] string: Power 10 memchr clobbers v20 + [33060] string: Power 10 strncmp clobbers nonvolatile vector registers + (CVE-2025-5745) + [33088] dynamic-link: __ehdr_start may need run-time relocation + [33089] build: [2.42 Regression] GCC 14.2.1 failed to build glibc + [33134] libc: mcount_internal shouldn't use vector/r16-r31 registers + nor call memcpy/memset + [33139] stdio: %n after static dlopen is unreliable if file + descriptors are exhausted + [33165] build: [2.42 Regression] FAIL: elf/check-localplt + [33173] math: Wrong IFUNC selector is used for modf/modff + [33185] regex: Double-free after memory allocation failure in regcomp + bracket expression parsing (CVE-2025-8058) + [33224] dynamic-link: _dl_debug_state hook no longer works (since + 8329939a37f483a16013dd8af8303cbcb86d92cb) Version 2.41 |