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2013-08-16CVE-2013-4237, BZ #14699: Buffer overflow in readdir_rFlorian Weimer
* sysdeps/posix/dirstream.h (struct __dirstream): Add errcode member. * sysdeps/posix/opendir.c (__alloc_dir): Initialize errcode member. * sysdeps/posix/rewinddir.c (rewinddir): Reset errcode member. * sysdeps/posix/readdir_r.c (__READDIR_R): Enforce NAME_MAX limit. Return delayed error code. Remove GETDENTS_64BIT_ALIGNED conditional. * sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c: Do not define GETDENTS_64BIT_ALIGNED. * sysdeps/unix/sysv/linux/i386/readdir64_r.c: Likewise. * manual/filesys.texi (Reading/Closing Directory): Document ENAMETOOLONG return value of readdir_r. Recommend readdir more strongly. * manual/conf.texi (Limits for Files): Add portability note to NAME_MAX, PATH_MAX. (Pathconf): Add portability note for _PC_NAME_MAX, _PC_PATH_MAX.
2013-08-13Fix cbrtl for ldbl-96Andreas Schwab
2013-08-12Open development for 2.19.glibc-2.18.90David S. Miller
* version.h (RELEASE): Set to "development". (VERSION): Set to "2.18.90". * NEWS: Add 2.19 section.
2013-07-25Added NEWS entries for AT_HWCAP2 and POWER8 enablement.Ryan S. Arnold
2013-07-22tile BZ #15759: Fix bug in _dl_unmapChris Metcalf
We returned without calling __munmap if not in the simulator. Now we call a separate sim_dlclose() function to make the control flow work correctly.
2013-07-21CVE-2013-2207, BZ #15755: Disable pt_chown.Carlos O'Donell
The helper binary pt_chown tricked into granting access to another user's pseudo-terminal. Pre-conditions for the attack: * Attacker with local user account * Kernel with FUSE support * "user_allow_other" in /etc/fuse.conf * Victim with allocated slave in /dev/pts Using the setuid installed pt_chown and a weak check on whether a file descriptor is a tty, an attacker could fake a pty check using FUSE and trick pt_chown to grant ownership of a pty descriptor that the current user does not own. It cannot access /dev/pts/ptmx however. In most modern distributions pt_chown is not needed because devpts is enabled by default. The fix for this CVE is to disable building and using pt_chown by default. We still provide a configure option to enable hte use of pt_chown but distributions do so at their own risk.
2013-07-16BZ #15711: Avoid circular dependency for syscall.hCarlos O'Donell
The generated header is compiled with `-ffreestanding' to avoid any circular dependencies against the installed implementation headers. Such a dependency would require the implementation header to be installed before the generated header could be built (See bug 15711). In current practice the generated header dependencies do not include any of the implementation headers removed by the use of `-ffreestanding'. --- 2013-07-15 Carlos O'Donell <carlos@redhat.com> [BZ #15711] * sysdeps/unix/sysv/linux/Makefile ($(objpfx)bits/syscall%h): Avoid system header dependency with -ffreestanding. ($(objpfx)bits/syscall%d): Likewise.
2013-07-02Add lock elision to NEWS fileAndi Kleen
2013-06-28Add more NEWS items for 2.18.Joseph Myers
2013-06-28Test for mprotect failure in dl-load.c (bug 12492).Pierre Ynard
2013-06-28[BZ #15022] Correct global-scope dlopen issues in static executables.Maciej W. Rozycki
This change creates a link map in static executables to serve as the global search list for dlopen. It fixes a problem with the inability to access the global symbol object and a crash on an attempt to map a DSO into the global scope. Some code that has become dead after the addition of this link map is removed too and test cases are provided.
2013-06-26Mention BZ #15674H.J. Lu
2013-06-24[BZ #15666] alpha: Add __sqrt*_finite definitionsRichard Henderson
With compatibility for ev6 and non-ev6 builds, as the non-ev6 did manage to get definitions emitted for the float and double functions.
2013-06-24[BZ #10283] localedef: align fixed maps to SHMLBAMike Frysinger
Many Linux arches require fixed mmaps to be aligned higher than pagesize, so use the SHMLBA define as it represents this quantity exactly. This fixes spurious errors seen on those arches like: cannot map archive header: Invalid argument URL: http://sourceware.org/bugzilla/show_bug.cgi?id=10283 Reported-by: CHIKAMA Masaki <masaki.chikama@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-06-24BZ #12310: pthread_exit in static app. segfaultsVladimir Nikulichev
Static applications that call pthread_exit on the main thread segfault. This is because after a thread terminates __libc_start_main decrements __nptl_nthreads which is only defined in pthread_create. Therefore the right solution is to add a requirement to pthread_create from pthread_exit. ~~~ nptl/ 2013-06-24 Vladimir Nikulichev <v.nikulichev@gmail.com> [BZ #12310] * pthread_exit.c: Add reference to pthread_create.
2013-06-22Fix soft-fp shadowing between __FP_FRAC_ADD_3 and _FP_MUL_MEAT_2_wide_3mul ↵Joseph Myers
(bug 15667).
2013-06-22Add sh4 implementation of fegetexceptflag (bug 15655).Kaz Kojima
2013-06-21Fix bad shift in soft-fp (bug 7006).Joseph Myers
2013-06-20Avoid spurious failures from <fenv.h> fallback functions (bug 15654).Joseph Myers
2013-06-17Make ARM feenableexcept detect failure (bug 14907).Joseph Myers
2013-06-15Fix spurious "inexact" exceptions from dbl-64 sqrt (bug 15631).Joseph Myers
2013-06-15New API to set default thread attributesSiddhesh Poyarekar
This patch introduces two new convenience functions to set the default thread attributes used for creating threads. This allows a programmer to set the default thread attributes just once in a process and then run pthread_create without additional attributes.
2013-06-14Stop MIPS setjmp / longjmp saving / restoring floating-point flags (bug 14909).Joseph Myers
2013-06-14Update ARM _FPU_RESERVED value.Joseph Myers
2013-06-15Add rtld-memset.S for x86_64Siddhesh Poyarekar
Resolves: BZ #15627 Add an assembler version of rtld-memset to avoid using SSE registers.
2013-06-14Avoid access beyond memory bounds in pthread_attr_getaffinity_npSiddhesh Poyarekar
Resolves BZ #15618. pthread_attr_getaffinity_np may write beyond bounds of the input cpuset buffer if the size of the input buffer is smaller than the buffer present in the input pthread attributes. Fix is to copy to the extent of the minimum of the source and the destination.
2013-06-13Fix NEWS entry about clock precisionSiddhesh Poyarekar
Text by Roland McGrath.
2013-06-13Update sv_FI@euroJohan Heikkila
[BZ#15432] * locales/sv_FI@euro: Add LC_MEASUREMENT.
2013-06-13Update sv_FIJohan Heikkila
[BZ#15431] * locales/sv_FI: Add LC_MEASUREMENT, use copy in LC_TELEPHONE, update LC_ADDRESS with using postal_fmt from Finnish Post Office recommendations at http://www.posti.fi/hinnatjaohjeet/osoitejakuorimerkinnat/osoitemerkinnat.html and add missing entries.
2013-06-13Improve precision of clock() function on LinuxSiddhesh Poyarekar
Resolves #12515. Use CLOCK_PROCESS_CPUTIME_ID instead of times to get better precision in the value returned by clock.
2013-06-11Update BIG5-HKSCS charmap to HKSCS-2008Andreas Schwab
2013-06-11Fix handling of netgroup cache in nscdAndreas Schwab
2013-06-05BZ #15583: r7 uninitialized in strcpy.S when ARM_HAS_T2 undefinedRichard Henderson
2013-06-05Properly handle %W in strptimeAndreas Schwab
2013-06-03BZ #15536: Fix ulp for 128-bit IBM long double.Carlos O'Donell
In 128-bit IBM long double the precision of the type decreases as you approach subnormal numbers, equaling that of a double for subnormal numbers. Therefore adjust the computation in ulp to use 2^(MIN_EXP - MANT_DIG) which is correct for FP_SUBNORMAL for all types.
2013-05-30Set reasonable limits for xdr_requests.Patsy Franklin
[BZ #15553] Increased the current limits large enough to load large key and data values, but small enough to not pose a DoS threat.
2013-05-30 [BZ #14256]Jeff Law
* manual/errno.texi (ESTALE): Update to account for more than just NFS file systems. * sysdeps/gnu/errlist.c: Regenerated.
2013-05-29Avoid crashing in LD_DEBUG when program name is unavailableSiddhesh Poyarekar
Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users.
2013-05-24Fix ldbl-96 hypotl of subnormals (bug 15529).Joseph Myers
2013-05-24Add bug 14894 to NEWS.Joseph Myers
2013-05-24Initialize wide struct info.Ondrej Bilka
Fixes 15381. Using wide character function is on byte oriented memstream is undefined behaviour. This behaviour was masked by not initializing wide struct info. We now initialize it to cause a predictable crash.
2013-05-22Fix _nl_find_msg malloc failure case, and callers.Carlos O'Donell
This patch fixes two issues, and perhaps should be two distinct commits, but I present it here as one for the sake of completeness. Commit 006dd86111c44572dbd3b26e9c63dd0f834d7762 fails to check malloc's return in intl/dcigettext.c (_nl_find_msg): ~~~ freemem_size = INITIAL_BLOCK_SIZE; newmem = (transmem_block_t *) malloc (freemem_size); ... newmem->next = transmem_list; transmem_list = newmem; ~~~ If malloc fails then newmem is NULL then newmem->next results in a fault. The fix is easy enough, check for newmem != NULL, and fall through to the error condition below which returns (char *) -1 e.g. resource error. The problem is that returning (char *) -1 will break all sorts of other code, so while what we did is correct, the real failure case fix is slightly broader. There are 4 other places where _nl_find_msg is called, one is OK, the other three are fixed to handle -1 error return value. No regressions on x86-64 or x86. However, no regressions isn't really a useful metric for this code. The change was tested as documented here: http://sourceware.org/glibc/wiki/Testing/WhiteBox using SystemTap for fault injection to simulate malloc failure. --- 2013-05-03 Carlos O'Donell <carlos at redhat.com> [BZ #15441] * intl/dcigettext.c (DCIGETTEXT): Skip translating if _nl_find_msg returns -1. (_nl_find_msg): Return -1 if recursive call returned -1. If newmem is null return -1. * intl/loadmsgcat.c (_nl_load_domain): If _nl_find_msg returns -1 abort loading the domain.
2013-05-21Fix MIPS n32 cancellation in static libc (bug 15506).Joseph Myers
2013-05-21Set EAI_SYSTEM only when h_errno is NETDB_INTERNALSiddhesh Poyarekar
Fixes BZ #15339. NSS_STATUS_UNAVAIL may mean that a necessary input resource is not available. This could occur in a number of cases including when the network is down, system runs out of file descriptors, etc. The correct differentiator in such a case is the h_errno, which gives the nature of failure. In case of failures other than a simple 'not found', we set h_errno as NETDB_INTERNAL and let errno be the identifier for the exact error.
2013-05-21Fix parsing of numeric hosts in gethostbyname_rAndreas Schwab
2013-05-21AArch64: Don't clobber argument for tail call to __sigjmp_save in sigsetjmpAndreas Schwab
2013-05-20PowerPC: update missing CL/NEWS bug referenceAdhemerval Zanella
Update ChangLog bugzilla number and NEWS for commit 13d3b41a36c4f28d171a144f8a9baad3a8835981 (PowerPC: fix hypot/hypotf check for -INF).
2013-05-19Fix nearbyint scheduling of arithmetic past fesetenv (bug 15490).Joseph Myers
2013-05-18Don't disable CMPLXL macro for __NO_LONG_DOUBLE_MATH (bug 15488).Joseph Myers
2013-05-17Fix remainder exceptions and directed-rounding results (bugs 15480, 15485).Joseph Myers