From 0f62a673fe00e83984810b7ec61b2d9a0bb8b9d4 Mon Sep 17 00:00:00 2001 From: B Horn Date: Thu, 18 Apr 2024 20:29:39 +0100 Subject: [PATCH 17/20] commands/minicmd: Block the dump command in lockdown mode The dump enables a user to read memory which should not be possible in lockdown mode. Fixes: CVE-2025-1118 Reported-by: B Horn Reported-by: Jonathan Bar Or Signed-off-by: B Horn Reviewed-by: Daniel Kiper --- grub-core/commands/minicmd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c index fa498931ed..903af33131 100644 --- a/grub-core/commands/minicmd.c +++ b/grub-core/commands/minicmd.c @@ -203,8 +203,8 @@ GRUB_MOD_INIT(minicmd) grub_register_command ("help", grub_mini_cmd_help, 0, N_("Show this message.")); cmd_dump = - grub_register_command ("dump", grub_mini_cmd_dump, - N_("ADDR [SIZE]"), N_("Show memory contents.")); + grub_register_command_lockdown ("dump", grub_mini_cmd_dump, + N_("ADDR [SIZE]"), N_("Show memory contents.")); cmd_rmmod = grub_register_command ("rmmod", grub_mini_cmd_rmmod, N_("MODULE"), N_("Remove a module.")); -- 2.48.1