|
 |
b1bcb2 |
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
|
b1bcb2 |
From: Javier Martinez Canillas <javierm@redhat.com>
|
|
|
b1bcb2 |
Date: Wed, 24 Feb 2021 22:59:59 +0100
|
|
|
b1bcb2 |
Subject: [PATCH] commands/setpci: Restrict setpci command when locked down
|
|
|
b1bcb2 |
|
|
|
b1bcb2 |
This command can set PCI devices register values, which makes it dangerous
|
|
|
b1bcb2 |
in a locked down configuration. Restrict it so can't be used on this setup.
|
|
|
b1bcb2 |
|
|
|
b1bcb2 |
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
|
|
|
b1bcb2 |
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
|
|
b1bcb2 |
---
|
|
|
b1bcb2 |
grub-core/commands/setpci.c | 8 ++++----
|
|
|
b1bcb2 |
1 file changed, 4 insertions(+), 4 deletions(-)
|
|
|
b1bcb2 |
|
|
|
b1bcb2 |
diff --git a/grub-core/commands/setpci.c b/grub-core/commands/setpci.c
|
|
|
b1bcb2 |
index d5bc97d60b2..fa2ba7d8919 100644
|
|
|
b1bcb2 |
--- a/grub-core/commands/setpci.c
|
|
|
b1bcb2 |
+++ b/grub-core/commands/setpci.c
|
|
|
b1bcb2 |
@@ -329,10 +329,10 @@ static grub_extcmd_t cmd;
|
|
|
b1bcb2 |
|
|
|
b1bcb2 |
GRUB_MOD_INIT(setpci)
|
|
|
b1bcb2 |
{
|
|
|
b1bcb2 |
- cmd = grub_register_extcmd ("setpci", grub_cmd_setpci, 0,
|
|
|
b1bcb2 |
- N_("[-s POSITION] [-d DEVICE] [-v VAR] "
|
|
|
b1bcb2 |
- "REGISTER[=VALUE[:MASK]]"),
|
|
|
b1bcb2 |
- N_("Manipulate PCI devices."), options);
|
|
|
b1bcb2 |
+ cmd = grub_register_extcmd_lockdown ("setpci", grub_cmd_setpci, 0,
|
|
|
b1bcb2 |
+ N_("[-s POSITION] [-d DEVICE] [-v VAR] "
|
|
|
b1bcb2 |
+ "REGISTER[=VALUE[:MASK]]"),
|
|
|
b1bcb2 |
+ N_("Manipulate PCI devices."), options);
|
|
|
b1bcb2 |
}
|
|
|
b1bcb2 |
|
|
|
b1bcb2 |
GRUB_MOD_FINI(setpci)
|