linux-hardening - Re: [PATCH v4 4/4] kstack_erase: Support Clang stack depth tracking

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Message-ID: <20250724-optimistic-armadillo-of-joviality-e59222@l-nschier-aarch64>
Date: Thu, 24 Jul 2025 15:08:58 +0200
From: Nicolas Schier <nicolas.schier@...ux.dev>
To: Kees Cook <kees@...nel.org>
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Subject: Re: [PATCH v4 4/4] kstack_erase: Support Clang stack depth tracking

On Wed, Jul 23, 2025 at 10:50:28PM -0700, Kees Cook wrote:
> Wire up CONFIG_KSTACK_ERASE to Clang 21's new stack depth tracking
> callback[1] option.
> 
> Link: https://clang.llvm.org/docs/SanitizerCoverage.html#tracing-stack-depth [1]
> Signed-off-by: Kees Cook <kees@...nel.org>
> ---
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Masahiro Yamada <masahiroy@...nel.org>
> Cc: Nathan Chancellor <nathan@...nel.org>
> Cc: Nicolas Schier <nicolas.schier@...ux.dev>
> Cc: Marco Elver <elver@...gle.com>
> Cc: Andrey Konovalov <andreyknvl@...il.com>
> Cc: Andrey Ryabinin <ryabinin.a.a@...il.com>
> Cc: Ard Biesheuvel <ardb@...nel.org>
> Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>
> Cc: <linux-kbuild@...r.kernel.org>
> Cc: <kasan-dev@...glegroups.com>
> Cc: <linux-hardening@...r.kernel.org>
> ---

Acked-by: Nicolas Schier <n.schier@....de>