diff mbox series

hardening: Document INIT_STACK_ALL_PATTERN behavior with GCC

Message ID 293d29d6a0d1823165be97285c1bc73e90ee9db8.1736239070.git.geert+renesas@glider.be (mailing list archive)
State Handled Elsewhere
Headers show
Series hardening: Document INIT_STACK_ALL_PATTERN behavior with GCC | expand

Commit Message

Geert Uytterhoeven Jan. 7, 2025, 8:38 a.m. UTC
The help text for INIT_STACK_ALL_PATTERN documents the patterns used by
Clang, but lacks documentation for GCC.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 security/Kconfig.hardening | 1 +
 1 file changed, 1 insertion(+)

Comments

Kees Cook Jan. 8, 2025, 10:18 p.m. UTC | #1
On Tue, 07 Jan 2025 09:38:57 +0100, Geert Uytterhoeven wrote:
> The help text for INIT_STACK_ALL_PATTERN documents the patterns used by
> Clang, but lacks documentation for GCC.
> 
> 

Applied to for-next/hardening, thanks!

[1/1] hardening: Document INIT_STACK_ALL_PATTERN behavior with GCC
      https://git.kernel.org/kees/c/a9a5e0bdc5a7

Take care,
diff mbox series

Patch

diff --git a/security/Kconfig.hardening b/security/Kconfig.hardening
index c9d5ca3d8d08de23..b56e001e0c6a9533 100644
--- a/security/Kconfig.hardening
+++ b/security/Kconfig.hardening
@@ -127,6 +127,7 @@  choice
 		  repeating for all types and padding except float and double
 		  which use 0xFF repeating (-NaN). Clang on 32-bit uses 0xFF
 		  repeating for all types and padding.
+		  GCC uses 0xFE repeating for all types, and zero for padding.
 
 	config INIT_STACK_ALL_ZERO
 		bool "zero-init everything (strongest and safest)"