Re: [PATCH] ima: force signature verification when CONFIG_KEXEC_SIG is configured

From: Mimi Zohar
Date: Tue Jul 12 2022 - 07:41:23 EST

On Tue, 2022-07-12 at 17:33 +0800, Coiby Xu wrote:
> Currently, an unsigned kernel could be kexec'ed when IMA arch specific
> policy is configured unless lockdown is enabled. Enforce kernel
> signature verification check in the kexec_file_load syscall when IMA
> arch specific policy is configured.
> Fixes: 99d5cadfde2b ("kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE")
> Reported-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
> Suggested-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
> Signed-off-by: Coiby Xu <coxu@xxxxxxxxxx>

Thanks, Coiby. This patch is now queued in next-integrity/next-