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Merge tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull EFI fix from Borislav Petkov:
 "Ensure that the EFI bootloader control module only probes successfully
  on systems that support the EFI SetVariable runtime service"

[ Tag and commit from Ard Biesheuvel, forwarded by Borislav ]

* tag 'efi-urgent-for-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: efibc: check for efivars write capability
This commit is contained in:
Linus Torvalds
2020-09-20 15:18:11 -07:00
parent 217eee7231 46908326c6
commit 5674d81c21
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/efi/efibc.c
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@@ -84,7 +84,7 @@ static int __init efibc_init(void)
{
int ret;
if (!efi_enabled(EFI_RUNTIME_SERVICES))
if (!efivars_kobject() || !efivar_supports_writes())
return -ENODEV;
ret = register_reboot_notifier(&efibc_reboot_notifier);