Update version.h and include/features.h for 2.22 release

System Internals / glibc - Carlos O'Donell [systemhalted.org] - 5 August 2015 01:42 UTC



###

Version 2.22

- The following bugs are resolved with this release:

438, 2981, 4719, 6544, 6792, 11216, 12836, 13028, 13064, 13151, 13152, 14094, 14113, 14292, 14841, 14906, 14958, 15319, 15467, 15790, 15969, 16159, 16339, 16350, 16351, 16352, 16353, 16361, 16512, 16526, 16538, 16559, 16560, 16704, 16783, 16850, 17053, 17090, 17195, 17269, 17293, 17322, 17403, 17475, 17523, 17542, 17569, 17581, 17588, 17596, 17620, 17621, 17628, 17631, 17692, 17711, 17715, 17776, 17779, 17792, 17833, 17836, 17841, 17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965, 17967, 17969, 17977, 17978, 17987, 17991, 17996, 17998, 17999, 18007, 18019, 18020, 18029, 18030, 18032, 18034, 18036, 18038, 18039, 18042, 18043, 18046, 18047, 18049, 18068, 18078, 18080, 18093, 18100, 18104, 18110, 18111, 18116, 18125, 18128, 18134, 18138, 18185, 18196, 18197, 18206, 18210, 18211, 18217, 18219, 18220, 18221, 18234, 18244, 18245, 18247, 18287, 18319, 18324, 18333, 18346, 18371, 18383, 18397, 18400, 18409, 18410, 18412, 18418, 18422, 18434, 18444, 18457, 18468, 18469, 18470, 18479, 18483, 18495, 18496, 18497, 18498, 18502, 18507, 18508, 18512, 18513, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18557, 18558, 18569, 18583, 18585, 18586, 18592, 18593, 18594, 18602, 18612, 18613, 18619, 18633, 18635, 18641, 18643, 18648, 18657, 18676, 18694, 18696.

- Cache information can be queried via sysconf() function on s390 e.g. with _SC_LEVEL1_ICACHE_SIZE as argument.

- A buffer overflow in gethostbyname_r and related functions performing DNS requests has been fixed. If the NSS functions were called with a misaligned buffer, the buffer length change due to pointer alignment was not taken into account. This could result in application crashes or, potentially arbitrary code execution, using crafted, but syntactically
valid DNS responses. (CVE-2015-1781)

- The time zone file parser has been made more robust against crafted time zone files, avoiding heap buffer overflows related to the processing of the tzh_ttisstdcnt and tzh_ttisgmtcnt fields, and a stack overflow due to large time zone data files. Overly long time zone specifiers in the TZ
variable no longer result in stack overflows and crashes.

- A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors for LD and GD on x86 and x86-64, has been implemented. You will need binutils-2.24 or later to enable this optimization.

- Character encoding and ctype tables were updated to Unicode 7.0.0, using new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red Hat). These updates cause user visible changes, such as the fix for bug 17998.

- CVE-2014-8121 The NSS backends shared internal state between the getXXent and getXXbyYY NSS calls for the same database, causing a denial-of-service condition in some applications.

- Added vector math library named libmvec with the following vectorized x86_64 implementations: cos, cosf, sin, sinf, sincos, sincosf, log, logf, exp, expf, pow, powf. The library can be disabled with --disable-mathvec. Use of the functions is enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0. Shared library libmvec.so is linked in as needed when using -lm (no need to specify -lmvec explicitly for not static builds).
Visit for detailed information.

- A new fmemopen implementation has been added with the goal of POSIX compliance. The new implementation fixes the following long-standing issues: BZ#6544, BZ#11216, BZ#12836, BZ#13151, BZ#13152, and BZ#14292. The old implementation is still present for use be by existing binaries.

- The 32-bit sparc sigaction ABI was inadvertently broken in the 2.20 and 2.21 releases. It has been fixed to match 2.19 and older, but binaries built against 2.20 and 2.21 might need to be recompiled. See BZ#18694.

- Port to Native Client running on ARMv7-A (--host=arm-nacl). Contributed by Roland McGrath (Google).

- The header is deprecated, and will be removed in a future release. Use of this header will trigger a deprecation warning. Application developers should update their code to use instead.

This header was formerly part of SUSv2, but was deprecated in 1997 and removed from the standard in 2001. Also, the glibc implementation leaks memory. See BZ#18681 for more details.

78bd749 Update version.h and include/features.h for 2.22 release
ChangeLog | 6 ++++++
include/features.h | 2 +-
version.h | 4 ++--
3 files changed, 9 insertions(+), 3 deletions(-)

Upstream: sourceware.org

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