diff --git a/SOURCES/glibc-upstream-2.39-bz-32470.patch b/SOURCES/glibc-upstream-2.39-bz-32470.patch
new file mode 100644
index 0000000..a28ce33
--- /dev/null
+++ b/SOURCES/glibc-upstream-2.39-bz-32470.patch
@@ -0,0 +1,36 @@
+From 2c8a7f14fac3628b6a06cc76cdfda54a7ac20386 Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Tue, 17 Dec 2024 18:12:03 +0100
+Subject: [PATCH] x86: Avoid integer truncation with large cache sizes (bug
+ 32470)
+
+Some hypervisors report 1 TiB L3 cache size.  This results
+in some variables incorrectly getting zeroed, causing crashes
+in memcpy/memmove because invariants are violated.
+
+(cherry picked from commit 61c3450db96dce96ad2b24b4f0b548e6a46d68e5)
+---
+ sysdeps/x86/dl-cacheinfo.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h
+index 5a98f70364..1f68968a9a 100644
+--- a/sysdeps/x86/dl-cacheinfo.h
++++ b/sysdeps/x86/dl-cacheinfo.h
+@@ -959,11 +959,11 @@ dl_init_cacheinfo (struct cpu_features *cpu_features)
+     non_temporal_threshold = maximum_non_temporal_threshold;
+ 
+   /* NB: The REP MOVSB threshold must be greater than VEC_SIZE * 8.  */
+-  unsigned int minimum_rep_movsb_threshold;
++  unsigned long int minimum_rep_movsb_threshold;
+   /* NB: The default REP MOVSB threshold is 4096 * (VEC_SIZE / 16) for
+      VEC_SIZE == 64 or 32.  For VEC_SIZE == 16, the default REP MOVSB
+      threshold is 2048 * (VEC_SIZE / 16).  */
+-  unsigned int rep_movsb_threshold;
++  unsigned long int rep_movsb_threshold;
+   if (CPU_FEATURE_USABLE_P (cpu_features, AVX512F)
+       && !CPU_FEATURE_PREFERRED_P (cpu_features, Prefer_No_AVX512))
+     {
+-- 
+2.46.2
+
diff --git a/SPECS/glibc.spec b/SPECS/glibc.spec
index 3dd8b68..137cd72 100644
--- a/SPECS/glibc.spec
+++ b/SPECS/glibc.spec
@@ -171,7 +171,7 @@ Version: %{glibcversion}
 #   generator to make the generated requires interchangeable between Rawhide
 #   and ELN (.elnYY < .fcXX).
 %global baserelease 17
-Release: %{baserelease}%{?dist}.alma.2
+Release: %{baserelease}%{?dist}.alma.3
 
 # Licenses:
 #
@@ -408,6 +408,9 @@ Patch96: glibc-upstream-2.39-72.patch
 # NEWS update: glibc-upstream-2.39-74.patch
 Patch97: glibc-upstream-2.39-75.patch
 
+# AlmaLinux backport: https://sourceware.org/bugzilla/show_bug.cgi?id=32470
+Patch1000: glibc-upstream-2.39-bz-32470.patch
+
 ##############################################################################
 # Continued list of core "glibc" package information:
 ##############################################################################
@@ -2635,6 +2638,10 @@ update_gconv_modules_cache ()
 %endif
 
 %changelog
+* Mon Dec 23 2024 Koichiro Iwao <meta@almalinux.org> - 2.39-17.alma.3
+- Re-apply reverted patch in 2.39-17.alma.2
+- Apply patch from upstream BZ #32480
+
 * Tue Dec 03 2024 Koichiro Iwao <meta@almalinux.org> - 2.39-17.alma.2
 - Revert: x86: Fix Zen3/Zen4 ERMS selection