Andreas Schwab
746e16d2b9
- Update to glibc 2.17.90 85891acadf1b:
* CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
has been fixed by disabling the use of pt_chown (Bugzilla #15755).
Distributions can re-enable building and using pt_chown via the new configure
option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
considerable security risks and should only be used if the distribution
understands and accepts the risks.
* CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
#15078).
* CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
fixed (Bugzilla #15330).
* Add support for calling C++11 thread_local object destructors on thread
and program exit. This needs compiler support for offloading C++11
destructor calls to glibc.
* Improved worst case performance of libm functions with double inputs and
output.
* Support for priority inherited mutexes in pthread condition variables on
non-x86 architectures.
* Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
* Optimized string functions for ARM. Implemented by Will Newton and
Richard Henderson.
* Added a benchmark framework to track performance of functions in glibc.
* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
It is based on draft TS 18661 and currently enabled as a GNU extension.
* On Linux, the clock function now uses the clock_gettime system call
for improved precision, rather than old times system call.
* Added new API functions pthread_getattr_default_np and
pthread_setattr_default_np to get and set the default pthread
attributes of a process.
* Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
OBS-URL: https://build.opensuse.org/request/show/186119
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=304
59 lines
1.8 KiB
Diff
59 lines
1.8 KiB
Diff
Index: glibc-2.17.90/elf/rtld.c
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===================================================================
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--- glibc-2.17.90.orig/elf/rtld.c
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+++ glibc-2.17.90/elf/rtld.c
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@@ -1717,6 +1717,53 @@ ERROR: ld.so: object '%s' cannot be load
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}
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}
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+#if defined(__i386__)
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+ /*
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+ * Modifications by Red Hat Software
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+ *
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+ * Deal with the broken binaries from the non-versioned ages of glibc.
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+ * If a binary does not have version information enabled, we assume that
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+ * it is a glibc 2.0 binary and we load a compatibility library to try to
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+ * overcome binary incompatibilities.
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+ * Blame: gafton@redhat.com
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+ */
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+#define LIB_NOVERSION "/lib/obsolete/noversion/libNoVersion.so.1"
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+
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+ if (__builtin_expect (main_map->l_info[DT_NUM + DT_THISPROCNUM
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+ + DT_VERSIONTAGIDX (DT_VERNEED)]
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+ == NULL, 0)
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+ && (main_map->l_info[DT_DEBUG]
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+ || !(GLRO(dl_debug_mask) & DL_DEBUG_PRELINK)))
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+ {
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+ struct stat test_st;
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+ int test_fd;
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+ int can_load;
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+
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+ HP_TIMING_NOW (start);
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+
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+ can_load = 1;
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+ test_fd = __open (LIB_NOVERSION, O_RDONLY);
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+ if (test_fd < 0) {
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+ can_load = 0;
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+ } else {
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+ if (__fxstat (_STAT_VER, test_fd, &test_st) < 0 || test_st.st_size == 0) {
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+ can_load = 0;
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+ }
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+ }
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+
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+ if (test_fd >= 0) /* open did no fail.. */
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+ __close(test_fd); /* avoid fd leaks */
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+
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+ if (can_load != 0)
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+ npreloads += do_preload (LIB_NOVERSION, main_map,
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+ "nonversioned binary");
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+
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+ HP_TIMING_NOW (stop);
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+ HP_TIMING_DIFF (diff, start, stop);
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+ HP_TIMING_ACCUM_NT (load_time, diff);
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+ }
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+#endif
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+
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if (__builtin_expect (*first_preload != NULL, 0))
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{
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/* Set up PRELOADS with a vector of the preloaded libraries. */
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