linux-kernel - [PATCH 5.16 0347/1017] selftests/lkdtm: Add UBSAN config

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Message-Id: <20220405070404.582416841@linuxfoundation.org>
Date:   Tue,  5 Apr 2022 09:21:00 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Muhammad Usama Anjum <usama.anjum@...labora.com>,
        Kees Cook <keescook@...omium.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0347/1017] selftests/lkdtm: Add UBSAN config

From: Muhammad Usama Anjum <usama.anjum@...labora.com>

[ Upstream commit 1900be289b598b2c553b3add13e491c0bb8a8550 ]

UBSAN_BOUNDS and UBSAN_TRAP depend on UBSAN config option.
merge_config.sh script generates following warnings if parent config
doesn't have UBSAN config already enabled and UBSAN_BOUNDS/UBSAN_TRAP
config options don't get added to the parent config.

Value requested for CONFIG_UBSAN_BOUNDS not in final .config
Requested value:  CONFIG_UBSAN_BOUNDS=y
Actual value:

Value requested for CONFIG_UBSAN_TRAP not in final .config
Requested value:  CONFIG_UBSAN_TRAP=y
Actual value:

Fix this by including UBSAN config.

Fixes: c75be56e35b2 ("lkdtm/bugs: Add ARRAY_BOUNDS to selftests")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
Acked-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/lkdtm/config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/lkdtm/config b/tools/testing/selftests/lkdtm/config
index a26a3fa9e925..8bd847f0463c 100644
--- a/tools/testing/selftests/lkdtm/config
+++ b/tools/testing/selftests/lkdtm/config
@@ -6,6 +6,7 @@ CONFIG_HARDENED_USERCOPY=y
 # CONFIG_HARDENED_USERCOPY_FALLBACK is not set
 CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y
 CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
+CONFIG_UBSAN=y
 CONFIG_UBSAN_BOUNDS=y
 CONFIG_UBSAN_TRAP=y
 CONFIG_STACKPROTECTOR_STRONG=y
-- 
2.34.1