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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Wed, 24 Feb 2021 22:59:59 +0100
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Subject: [PATCH] commands/setpci: Restrict setpci command when locked down
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This command can set PCI devices register values, which makes it dangerous
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in a locked down configuration. Restrict it so can't be used on this setup.
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/commands/setpci.c | 8 ++++----
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1 file changed, 4 insertions(+), 4 deletions(-)
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diff --git a/grub-core/commands/setpci.c b/grub-core/commands/setpci.c
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index d5bc97d60..fa2ba7d89 100644
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--- a/grub-core/commands/setpci.c
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+++ b/grub-core/commands/setpci.c
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@@ -329,10 +329,10 @@ static grub_extcmd_t cmd;
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GRUB_MOD_INIT(setpci)
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{
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- cmd = grub_register_extcmd ("setpci", grub_cmd_setpci, 0,
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- N_("[-s POSITION] [-d DEVICE] [-v VAR] "
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- "REGISTER[=VALUE[:MASK]]"),
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- N_("Manipulate PCI devices."), options);
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+ cmd = grub_register_extcmd_lockdown ("setpci", grub_cmd_setpci, 0,
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+ N_("[-s POSITION] [-d DEVICE] [-v VAR] "
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+ "REGISTER[=VALUE[:MASK]]"),
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+ N_("Manipulate PCI devices."), options);
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}
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GRUB_MOD_FINI(setpci)
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