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import glibc-2.28-205.el8

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CentOS Sources 2022-06-09 08:11:03 +00:00 committed by Stepan Oksanichenko
parent ec6a921b4e
commit f0101d98ec
2 changed files with 46 additions and 1 deletions
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41
SOURCES/glibc-rh2091553.patch Normal file
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@ -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

6
SPECS/glibc.spec
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@ -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)