On Thu, 2017-10-19 at 15:50 +0100, David Howells wrote: > If the kernel is locked down, require that all modules have valid > signatures that we can verify. > > Signed-off-by: David Howells <dhowe...@redhat.com> > --- > > kernel/module.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/kernel/module.c b/kernel/module.c > index de66ec825992..3d9a3270c179 100644 > --- a/kernel/module.c > +++ b/kernel/module.c > @@ -2781,7 +2781,8 @@ static int module_sig_check(struct load_info *info, int > flags) > } > > /* Not having a signature is only an error if we're strict. */ > - if (err == -ENOKEY && !sig_enforce) > + if (err == -ENOKEY && !sig_enforce && > + !kernel_is_locked_down("Loading of unsigned modules")) This kernel_is_locked_down() check is being called for both the original and new module_load syscalls. We need to be able differentiate them. This is fine for the original syscall, but for the new syscall we would need an additional IMA check - !is_ima_appraise_enabled().
Mimi > err = 0; > > return err; -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html