[GIT PULL] Kernel lockdown for secure boot
From: luto@kernel.org (Andy Lutomirski)
Date: 2018-04-04 00:18:34
Also in:
linux-api, linux-efi, linux-man, lkml
From: luto@kernel.org (Andy Lutomirski)
Date: 2018-04-04 00:18:34
Also in:
linux-api, linux-efi, linux-man, lkml
On Tue, Apr 3, 2018 at 5:16 PM, Matthew Garrett [off-list ref] wrote:
On Tue, Apr 3, 2018 at 5:15 PM Linus Torvalds [off-list ref] wrote:quoted
On Tue, Apr 3, 2018 at 5:10 PM, Matthew Garrett [off-list ref] wrote:quoted
quoted
Exactly like EVERY OTHER KERNEL CONFIG OPTION.So your argument is that we should make the user experience worse?Withoutquoted
quoted
some sort of verified boot mechanism, lockdown is just security theater. There's no good reason to enable it unless you have some mechanism for verifying that you booted something you trust.quoted
Wow. Way to snip the rest of the email where I told you what the solution was. Let me repeat it here, since you so conveniently missed it and deleted it:I ignored it because it's not a viable option. Part of the patchset disables various kernel command line options. If there's a kernel command line option that disables the patchset then it's pointless.
if your secure boot-enabled bootloader can't prevent a bad guy from using malicious kernel command line parameters, then fix it. -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html