update to glibc-2.28-251.2.src.rpm

Signed-off-by: Zhao Hang <wb-zh951434@alibaba-inc.com>

glibc-RHEL-15696-83.patch

@@ -0,0 +1,77 @@
+From 9fef7039a7d04947bc89296ee0d187bc8d89b772 Mon Sep 17 00:00:00 2001
+From: Noah Goldstein <goldstein.w.n@gmail.com>
+Date: Thu, 24 Mar 2022 15:50:33 -0500
+Subject: [PATCH] x86: Fix fallback for wcsncmp_avx2 in strcmp-avx2.S [BZ
+ #28896]
+Content-type: text/plain; charset=UTF-8
+
+Overflow case for __wcsncmp_avx2_rtm should be __wcscmp_avx2_rtm not
+__wcscmp_avx2.
+
+commit ddf0992cf57a93200e0c782e2a94d0733a5a0b87
+Author: Noah Goldstein <goldstein.w.n@gmail.com>
+Date:   Sun Jan 9 16:02:21 2022 -0600
+
+    x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755]
+
+Set the wrong fallback function for `__wcsncmp_avx2_rtm`. It was set
+to fallback on to `__wcscmp_avx2` instead of `__wcscmp_avx2_rtm` which
+can cause spurious aborts.
+
+This change will need to be backported.
+
+All string/memory tests pass.
+Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
+---
+ sysdeps/x86/tst-strncmp-rtm.c          | 15 +++++++++++++++
+ sysdeps/x86_64/multiarch/strcmp-avx2.S |  2 +-
+ 2 files changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/sysdeps/x86/tst-strncmp-rtm.c b/sysdeps/x86/tst-strncmp-rtm.c
+index aef9866c..ba6543be 100644
+--- a/sysdeps/x86/tst-strncmp-rtm.c
++++ b/sysdeps/x86/tst-strncmp-rtm.c
+@@ -70,6 +70,16 @@ function_overflow (void)
+     return 1;
+ }
+ 
++__attribute__ ((noinline, noclone))
++static int
++function_overflow2 (void)
++{
++  if (STRNCMP (string1, string2, SIZE_MAX >> 4) == 0)
++    return 0;
++  else
++    return 1;
++}
++
+ static int
+ do_test (void)
+ {
+@@ -77,5 +87,10 @@ do_test (void)
+   if (status != EXIT_SUCCESS)
+     return status;
+   status = do_test_1 (TEST_NAME, LOOP, prepare, function_overflow);
++  if (status != EXIT_SUCCESS)
++    return status;
++  status = do_test_1 (TEST_NAME, LOOP, prepare, function_overflow2);
++  if (status != EXIT_SUCCESS)
++    return status;
+   return status;
+ }
+diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2.S b/sysdeps/x86_64/multiarch/strcmp-avx2.S
+index 179cc0e3..782f9472 100644
+--- a/sysdeps/x86_64/multiarch/strcmp-avx2.S
++++ b/sysdeps/x86_64/multiarch/strcmp-avx2.S
+@@ -122,7 +122,7 @@ ENTRY(STRCMP)
+ 	   are cases where length is large enough that it can never be a
+ 	   bound on valid memory so just use wcscmp.  */
+ 	shrq	$56, %rcx
+-	jnz	__wcscmp_avx2
++	jnz	OVERFLOW_STRCMP
+ 
+ 	leaq	(, %rdx, 4), %rdx
+ #  endif
+-- 
+GitLab
+