import glibc-2.17-292.el7.src.rpm

Signed-off-by: zhangbinchen <zhangbinchen@openanolis.org>

glibc-rh1595191-2.patch

@@ -0,0 +1,34 @@
+commit 3bb748257405e94e13de76573a4e9da1cfd961d0
+Author: Florian Weimer <fweimer@redhat.com>
+Date:   Tue Jul 3 15:54:49 2018 +0200
+
+    libio: Disable vtable validation in case of interposition [BZ #23313]
+    
+    (cherry picked from commit c402355dfa7807b8e0adb27c009135a7e2b9f1b0)
+
+Backported from the upstream release/2.26/master branch.
+
+diff --git a/libio/vtables.c b/libio/vtables.c
+index e364ea03edbfa75b..d6478e4bab9050ce 100644
+--- a/libio/vtables.c
++++ b/libio/vtables.c
+@@ -68,3 +68,19 @@ _IO_vtable_check (void)
+ 
+   __libc_fatal ("Fatal error: glibc detected an invalid stdio handle\n");
+ }
++
++/* Some variants of libstdc++ interpose _IO_2_1_stdin_ etc. and
++   install their own vtables directly, without calling _IO_init or
++   other functions.  Detect this by looking at the vtables values
++   during startup, and disable vtable validation in this case.  */
++#ifdef SHARED
++__attribute__ ((constructor))
++static void
++check_stdfiles_vtables (void)
++{
++  if (_IO_2_1_stdin_.vtable != &_IO_file_jumps
++      || _IO_2_1_stdout_.vtable != &_IO_file_jumps
++      || _IO_2_1_stderr_.vtable != &_IO_file_jumps)
++    IO_set_accept_foreign_vtables (&_IO_vtable_check);
++}
++#endif