Debrand for AlmaLinux
Build btrfs module
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Eduard Abdullin
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4171eab13f
65
0371-Add-__stack_chk_fail-function-for-non-EFI-archs.patch
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65
0371-Add-__stack_chk_fail-function-for-non-EFI-archs.patch
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@ -0,0 +1,65 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Leo Sandoval <lsandova@redhat.com>
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Date: Fri, 1 Aug 2025 11:56:53 -0600
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Subject: [PATCH] Add __stack_chk_fail function for non-EFI archs
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This function allows to include '-fstack-protector-strong' compiler
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flag for non-EFI archs. Also fixes a configure.ac condition where only
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disables stack protection when stack protector is not possible.
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Signed-off-by: Leo Sandoval <lsandova@redhat.com>
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---
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configure.ac | 4 +---
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grub-core/kern/main.c | 8 ++++++++
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include/grub/misc.h | 4 ++++
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3 files changed, 13 insertions(+), 3 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index a6a6957fbd..a803d21a3e 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1466,9 +1466,7 @@ AC_ARG_ENABLE([stack-protector],
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[],
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[enable_stack_protector=no])
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if test "x$enable_stack_protector" = xno; then
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- if test "x$ssp_possible" = xyes; then
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- # Need that, because some distributions ship compilers that include
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- # `-fstack-protector' in the default specs.
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+ if test "x$ssp_possible" != xyes; then
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TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
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fi
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elif test "x$platform" != xefi; then
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diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
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index 2e6b79ee3d..aeafbbff9c 100644
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--- a/grub-core/kern/main.c
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+++ b/grub-core/kern/main.c
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@@ -39,6 +39,14 @@
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static bool cli_disabled = false;
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static bool cli_need_auth = false;
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+#ifndef GRUB_MACHINE_EFI
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+void __attribute__ ((noreturn))
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+__stack_chk_fail (void)
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+{
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+ grub_abort();
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+}
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+#endif
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+
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grub_addr_t
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grub_modules_get_end (void)
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{
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diff --git a/include/grub/misc.h b/include/grub/misc.h
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index 0429339ef3..751eb992ca 100644
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--- a/include/grub/misc.h
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+++ b/include/grub/misc.h
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@@ -446,6 +446,10 @@ extern bool EXPORT_FUNC(grub_is_cli_disabled) (void);
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extern bool EXPORT_FUNC(grub_is_cli_need_auth) (void);
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extern void EXPORT_FUNC(grub_cli_set_auth_needed) (void);
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+#ifndef GRUB_MACHINE_EFI
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+extern void __attribute__ ((noreturn)) EXPORT_FUNC (__stack_chk_fail) (void);
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+#endif
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+
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/* Must match softdiv group in gentpl.py. */
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#if !defined(GRUB_MACHINE_EMU) && (defined(__arm__) || defined(__ia64__) || \
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(defined(__riscv) && (__riscv_xlen == 32)))
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@ -25,9 +25,7 @@
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%global cflags_sed \\\
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sed \\\
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-e 's/-O. //g' \\\
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-e 's/-fplugin=annobin//g' \\\
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-e 's,-specs=[[:alnum:]/_-]*annobin[[:alnum:]_-]*,,g' \\\
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-e 's/-fstack-protector[[:alpha:]-]\\+//g' \\\
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-e 's/-fno-stack-protector//g' \\\
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-e 's/-[^ ]*D_FORTIFY_SOURCE=[[:digit:]][^ ]*\\+//g' \\\
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-e 's/--param=ssp-buffer-size=4//g' \\\
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-e 's/-mregparm=3/-mregparm=4/g' \\\
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@ -37,7 +35,7 @@
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-e 's/^/ -fno-strict-aliasing /' \\\
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%{nil}
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%global host_cflags_ %{expand:%%(echo %{build_cflags} %{?_hardening_cflags} | %{cflags_sed})} -fstack-protector-strong
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%global host_cflags_ %{expand:%%(echo %{build_cflags} %{?_hardening_cflags} -fstack-protector-strong | %{cflags_sed})}
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%ifarch %{x86_64}
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%global host_cflags %{host_cflags_} -fcf-protection
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%else
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@ -51,7 +49,7 @@
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)}
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%global efi_host_cflags %{expand:%%(echo %{host_cflags})}
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%global target_cflags %{expand:%%(echo %{build_cflags} | %{cflags_sed})}
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%global target_cflags %{expand:%%(echo %{build_cflags} -fstack-protector-strong | %{cflags_sed})}
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%global legacy_target_cflags \\\
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%{expand:%%(echo %{target_cflags} | \\\
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%{cflags_sed} \\\
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@ -373,6 +371,7 @@ rm -r build-aux m4 \
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--target=%{1} \\\
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--with-grubdir=grub2 \\\
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--program-transform-name=s,grub,grub2, \\\
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--enable-stack-protector=strong \\\
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--disable-werror || ( cat config.log ; exit 1 ) \
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git add . \
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git commit -m "After efi configure" \
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@ -367,3 +367,4 @@ Patch0367: 0367-Use-medany-instead-of-large-model-for-RISCV.patch
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Patch0368: 0368-10_linux.in-escape-kernel-option-characters-properly.patch
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Patch0369: 0369-blscfg-check-if-variable-is-escaped-before-consideri.patch
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Patch0370: 0370-Set-correctly-the-memory-attributes-for-the-kernel-P.patch
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Patch0371: 0371-Add-__stack_chk_fail-function-for-non-EFI-archs.patch
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@ -17,7 +17,7 @@
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Name: grub2
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Epoch: 1
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Version: 2.12
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Release: 25%{?dist}.alma.1
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Release: 26%{?dist}.alma.1
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Summary: Bootloader with support for Linux, Multiboot and more
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License: GPL-3.0-or-later
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URL: http://www.gnu.org/software/grub/
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@ -565,10 +565,14 @@ fi
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%endif
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%changelog
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* Sat Aug 02 2025 Eduard Abdullin <eabdullin@almalinux.org> - 1:2.12-25.alma.1
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* Fri Aug 08 2025 Eduard Abdullin <eabdullin@almalinux.org> - 1:2.12-26.alma.1
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- Debrand for AlmaLinux
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- Build btrfs module
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* Thu Jul 31 2025 Leo Sandoval <lsandova@redhat.com> 2.12-26
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- Enable strong stack protector on EFI configurations
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- Resolves: #RHEL-89464
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* Thu Jul 31 2025 Leo Sandoval <lsandova@redhat.com> 2.12-25
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- 20-grub.install: Skip BLS removal when entry type is type2
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- Resolves: #RHEL-104167
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