diff --git a/SOURCES/glibc-rh2091553.patch b/SOURCES/glibc-rh2091553.patch
new file mode 100644
index 0000000..376eb48
--- /dev/null
+++ b/SOURCES/glibc-rh2091553.patch
@@ -0,0 +1,41 @@
+From 82c7441f04e3c2a653ee29672731e040a1799c6b Mon Sep 17 00:00:00 2001
+From: Matheus Castanho <msc@linux.ibm.com>
+Date: Tue, 7 Jun 2022 10:27:26 -0300
+Subject: powerpc: Fix VSX register number on __strncpy_power9 [BZ #29197]
+
+__strncpy_power9 initializes VR 18 with zeroes to be used throughout the
+code, including when zero-padding the destination string. However, the
+v18 reference was mistakenly being used for stxv and stxvl, which take a
+VSX vector as operand. The code ended up using the uninitialized VSR 18
+register by mistake.
+
+Both occurrences have been changed to use the proper VSX number for VR 18
+(i.e. VSR 50).
+
+Tested on powerpc, powerpc64 and powerpc64le.
+
+Signed-off-by: Kewen Lin <linkw@gcc.gnu.org>
+(cherry picked from commit 0218463dd8265ed937622f88ac68c7d984fe0cfc)
+
+diff --git a/sysdeps/powerpc/powerpc64/le/power9/strncpy.S b/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
+index 291941c1e5..5421525ace 100644
+--- a/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
++++ b/sysdeps/powerpc/powerpc64/le/power9/strncpy.S
+@@ -352,7 +352,7 @@ L(zero_padding_loop):
+ 	cmpldi	cr6,r5,16	/* Check if length was reached.  */
+ 	ble	cr6,L(zero_padding_end)
+ 
+-	stxv	v18,0(r11)
++	stxv	32+v18,0(r11)
+ 	addi	r11,r11,16
+ 	addi	r5,r5,-16
+ 
+@@ -360,7 +360,7 @@ L(zero_padding_loop):
+ 
+ L(zero_padding_end):
+ 	sldi	r10,r5,56	/* stxvl wants size in top 8 bits  */
+-	stxvl	v18,r11,r10	/* Partial store  */
++	stxvl	32+v18,r11,r10	/* Partial store  */
+ 	blr
+ 
+ 	.align	4
diff --git a/SPECS/glibc.spec b/SPECS/glibc.spec
index fd6321d..220470b 100644
--- a/SPECS/glibc.spec
+++ b/SPECS/glibc.spec
@@ -1,6 +1,6 @@
 %define glibcsrcdir glibc-2.28
 %define glibcversion 2.28
-%define glibcrelease 204%{?dist}
+%define glibcrelease 205%{?dist}
 # Pre-release tarballs are pulled in from git using a command that is
 # effectively:
 #
@@ -903,6 +903,7 @@ Patch708: glibc-rh2089247-3.patch
 Patch709: glibc-rh2089247-4.patch
 Patch710: glibc-rh2089247-5.patch
 Patch711: glibc-rh2089247-6.patch
+Patch712: glibc-rh2091553.patch
 
 ##############################################################################
 # Continued list of core "glibc" package information:
@@ -2733,6 +2734,9 @@ fi
 %files -f compat-libpthread-nonshared.filelist -n compat-libpthread-nonshared
 
 %changelog
+* Tue Jun 07 2022 DJ Delorie <dj@redhat.com) - 2.28-205
+- Fix incorrect strncpy results on POWER9 (#2091553)
+
 * Mon May 23 2022 Florian Weimer <fweimer@redhat.com> - 2.28-204
 - Increase tempnam randomness (#2089247)