From: Alexander Popov <alex.popov@linux.com>
Date: Thu, 22 Oct 2020 18:42:21 +0000 (+0300)
Subject: Add the recommendation about UBSAN_BOUNDS
X-Git-Tag: v0.5.9~7
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=e165289160f071b9e1016af366b2a0e3948566ad;hp=4dcb0cdd1c84d90f268c9f970ff5b0093b12fcd8;p=kconfig-hardened-check.git

Add the recommendation about UBSAN_BOUNDS

Enable UBSAN_BOUNDS and UBSAN_TRAP.
But keep UBSAN_MISC disabled to avoid useless reports.
---

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 48f4019..1ca0530 100644
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -395,6 +395,9 @@ def construct_checklist(l, arch):
                   iommu_support_is_set)]
 
     # 'self_protection', 'my'
+    l += [AND(OptCheck('self_protection', 'my', 'UBSAN_BOUNDS', 'y'),
+              OptCheck('self_protection', 'my', 'UBSAN_MISC', 'is not set'),
+              OptCheck('self_protection', 'my', 'UBSAN_TRAP', 'y'))]
     l += [OptCheck('self_protection', 'my', 'SLUB_DEBUG_ON', 'y')] # TODO: is it better to set that via kernel cmd?
     l += [OptCheck('self_protection', 'my', 'RESET_ATTACK_MITIGATION', 'y')] # needs userspace support (systemd)
     if arch == 'X86_64':