update to glibc-2.28-225.el8

Signed-off-by: anolis-bot <sam.zyc@alibaba-inc.com>

glibc-rh1871383-5.patch

@@ -0,0 +1,35 @@
+From b9cde4e3aa1ff338da7064daf1386b2f4a7351ba Mon Sep 17 00:00:00 2001
+From: DJ Delorie <dj@redhat.com>
+Date: Sat, 4 Apr 2020 01:44:56 -0400
+Subject: malloc: ensure set_max_fast never stores zero [BZ #25733]
+
+The code for set_max_fast() stores an "impossibly small value"
+instead of zero, when the parameter is zero.  However, for
+small values of the parameter (ex: 1 or 2) the computation
+results in a zero being stored anyway.
+
+This patch checks for the parameter being small enough for the
+computation to result in zero instead, so that a zero is never
+stored.
+
+key values which result in zero being stored:
+
+x86-64:  1..7  (or other 64-bit)
+i686:    1..11
+armhfp:  1..3  (or other 32-bit)
+
+Reviewed-by: Carlos O'Donell <carlos@redhat.com>
+
+diff --git a/malloc/malloc.c b/malloc/malloc.c
+index 6acb5ad43a..ee87ddbbf9 100644
+--- a/malloc/malloc.c
++++ b/malloc/malloc.c
+@@ -1632,7 +1632,7 @@ static INTERNAL_SIZE_T global_max_fast;
+  */
+ 
+ #define set_max_fast(s) \
+-  global_max_fast = (((s) == 0)						      \
++  global_max_fast = (((size_t) (s) <= MALLOC_ALIGN_MASK - SIZE_SZ)	\
+                      ? MIN_CHUNK_SIZE / 2 : ((s + SIZE_SZ) & ~MALLOC_ALIGN_MASK))
+ 
+ static inline INTERNAL_SIZE_T