From mboxrd@z Thu Jan 1 00:00:00 1970 From: jlee@suse.com (joeyli) Date: Fri, 20 Oct 2017 14:33:20 +0800 Subject: [PATCH 03/27] Enforce module signatures if the kernel is locked down In-Reply-To: <150842465546.7923.6762214527898273559.stgit@warthog.procyon.org.uk> References: <150842463163.7923.11081723749106843698.stgit@warthog.procyon.org.uk> <150842465546.7923.6762214527898273559.stgit@warthog.procyon.org.uk> Message-ID: <20171020063320.GL3285@linux-l9pv.suse> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org Hi David, Thanks for you send our this series. On Thu, Oct 19, 2017 at 03:50:55PM +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 I have reviewed and tested this patch. Please feel free to add: Reviewed-by: "Lee, Chun-Yi" Thanks a lot! Joey Lee > --- > > 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")) > err = 0; > > return err; > > -- > To unsubscribe from this list: send the line "unsubscribe linux-efi" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- 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