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From: Mel Gorman <mgorman@techsingularity.net>
To: Kees Cook <kees@kernel.org>
Cc: Daniel Micay <danielmicay@gmail.com>,
	Paul Moore <paul@paul-moore.com>,
	linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org,
	Mel Gorman <mgorman@techsingularity.net>
Subject: [PATCH 4/4] fortify: Move FORTIFY_SOURCE under 'Kernel hardening options'
Date: Wed, 22 Jan 2025 17:19:25 +0000	[thread overview]
Message-ID: <20250122171925.25472-5-mgorman@techsingularity.net> (raw)
In-Reply-To: <20250122171925.25472-1-mgorman@techsingularity.net>

FORTIFY_SOURCE is a hardening option both at build and runtime. Move
it under 'Kernel hardening options'.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
---
 security/Kconfig           | 9 ---------
 security/Kconfig.hardening | 9 +++++++++
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/security/Kconfig b/security/Kconfig
index fe7346dc4bc3..bca84f839fbe 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -159,15 +159,6 @@ config LSM_MMAP_MIN_ADDR
 	  this low address space will need the permission specific to the
 	  systems running LSM.
 
-config FORTIFY_SOURCE
-	bool "Harden common str/mem functions against buffer overflows"
-	depends on ARCH_HAS_FORTIFY_SOURCE
-	# https://github.com/llvm/llvm-project/issues/53645
-	depends on !CC_IS_CLANG || !X86_32
-	help
-	  Detect overflows of buffers in common string and memory functions
-	  where the compiler can determine and validate the buffer sizes.
-
 config STATIC_USERMODEHELPER
 	bool "Force all usermode helper calls through a single binary"
 	help
diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index adcc260839c7..e22dc1801bee 100644
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -281,6 +281,15 @@ endmenu
 
 menu "Bounds checking"
 
+config FORTIFY_SOURCE
+	bool "Harden common str/mem functions against buffer overflows"
+	depends on ARCH_HAS_FORTIFY_SOURCE
+	# https://github.com/llvm/llvm-project/issues/53645
+	depends on !CC_IS_CLANG || !X86_32
+	help
+	  Detect overflows of buffers in common string and memory functions
+	  where the compiler can determine and validate the buffer sizes.
+
 config HARDENED_USERCOPY
 	bool "Harden memory copies between kernel and userspace"
 	imply STRICT_DEVMEM
-- 
2.43.0


  parent reply	other threads:[~2025-01-22 17:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-22 17:19 [PATCH v2 0/4] Allow default HARDENED_USERCOPY to be set at compile time Mel Gorman
2025-01-22 17:19 ` [PATCH 1/4] mm: security: Move hardened usercopy under 'Kernel hardening options' Mel Gorman
2025-01-22 17:19 ` [PATCH 2/4] mm: security: Allow default HARDENED_USERCOPY to be set at compile time Mel Gorman
2025-01-23  0:57   ` Kees Cook
2025-01-23 11:37     ` Mel Gorman
2025-01-23 21:10     ` David Laight
2025-01-22 17:19 ` [PATCH 3/4] mm: security: Check early if HARDENED_USERCOPY is enabled Mel Gorman
2025-01-23  1:01   ` Kees Cook
2025-01-23 11:47     ` Mel Gorman
2025-01-22 17:19 ` Mel Gorman [this message]
2025-01-22 21:42   ` [PATCH 4/4] fortify: Move FORTIFY_SOURCE under 'Kernel hardening options' Paul Moore
2025-01-23  1:02 ` [PATCH v2 0/4] Allow default HARDENED_USERCOPY to be set at compile time Kees Cook
2025-01-23 11:49   ` Mel Gorman
  -- strict thread matches above, loose matches on Subject: below --
2025-01-23 22:11 [PATCH v3 " Mel Gorman
2025-01-23 22:11 ` [PATCH 4/4] fortify: Move FORTIFY_SOURCE under 'Kernel hardening options' Mel Gorman

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