mm: do not update mem attrs even if EFI protocol is present

A temporal workaround while a real fix is being elaborated.

Resolves: #RHEL-97086

Signed-off-by: Gerd Hoffman <ghoffman@redhat.com>
Signed-off-by: Leo Sandoval <lsandova@redhat.com>

0370-mm.c-do-not-update-mem-attrs-even-if-EFI-protocol-is.patch

@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Leo Sandoval <lsandova@redhat.com>
+Date: Tue, 15 Jul 2025 14:24:05 -0600
+Subject: [PATCH] mm.c: do not update mem attrs even if EFI protocol is present
+
+A temporal workaround while a real fix is being elaborated.
+
+Resolves: #RHEL-97086
+
+Signed-off-by: Gerd Hoffman <ghoffman@redhat.com>
+Signed-off-by: Leo Sandoval <lsandova@redhat.com>
+---
+ grub-core/kern/efi/mm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/grub-core/kern/efi/mm.c b/grub-core/kern/efi/mm.c
+index 464fe1c3c0..80af7b4dfc 100644
+--- a/grub-core/kern/efi/mm.c
++++ b/grub-core/kern/efi/mm.c
+@@ -892,7 +892,7 @@ grub_update_mem_attrs (grub_addr_t addr, grub_size_t size,
+   grub_err_t err;
+ 
+   proto = grub_efi_locate_protocol (&protocol_guid, 0);
+-  if (!proto)
++  if (1 /* !proto */)
+     return GRUB_ERR_NONE;
+ 
+   err = grub_get_mem_attrs (addr, size, &before);

grub.patches

@@ -365,4 +365,5 @@ Patch0365: 0365-loader-efi-Fix-RISC-V-build.patch
 Patch0366: 0366-kern-riscv-efi-init-Use-time-register-in-grub_efi_ge.patch
 Patch0367: 0367-Use-medany-instead-of-large-model-for-RISCV.patch
 Patch0368: 0368-10_linux.in-escape-kernel-option-characters-properly.patch
-Patch0369: 0369-blscfg-check-if-variable-is-escaped-before-consideri.patch
+Patch0369: 0369-blscfg-check-if-variable-is-escaped-before-consideri.patch
+Patch0370: 0370-mm.c-do-not-update-mem-attrs-even-if-EFI-protocol-is.patch

grub2.spec

@@ -17,7 +17,7 @@
 Name:		grub2
 Epoch:		1
 Version:	2.12
-Release:	21%{?dist}
+Release:	22%{?dist}
 Summary:	Bootloader with support for Linux, Multiboot and more
 License:	GPL-3.0-or-later
 URL:		http://www.gnu.org/software/grub/
@@ -583,6 +583,10 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
 %endif
 
 %changelog
+* Tue Jul 15 2025 Leo Sandoval <lsandova@redhat.com> 2.12-22
+- workaround: do not update mem attrs even if EFI protocol is present
+- Resolves: #RHEL-97086
+
 * Fri Jun 6 2025 Leo Sandoval <lsandova@redhat.com> 2.12-21
 - Bump version (see CS-2896)
 - Resolves: #RHEL-94342