linux-kernel - Re: [PATCH 0/1] Fix CFI hash randomization with KASAN

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Date:   Fri, 13 Jan 2023 15:15:18 -0800
From:   Kees Cook <keescook@...omium.org>
To:     masahiroy@...nel.org, peterz@...radead.org, samitolvanen@...gle.com
Cc:     Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev, linux-kbuild@...r.kernel.org,
        nathan@...nel.org, ndesaulniers@...gle.com
Subject: Re: [PATCH 0/1] Fix CFI hash randomization with KASAN

On Thu, 12 Jan 2023 22:49:47 +0000, Sami Tolvanen wrote:
> Peter, Masahiro,
> 
> I noticed that KASAN+CFI fails to boot on x86_64 without
> cfi=norand. The randomization code is missing a couple of KASAN
> constructors in object files that are not part of vmlinux.o. This
> happens because we don't run objtool for the files, which means
> the type hashes are not included in the .cfi_sites section.
> 
> [...]

Applied to for-linus/hardening, thanks!

[1/1] kbuild: Fix CFI hash randomization with KASAN
      https://git.kernel.org/kees/c/a6c5a3491b3f

-- 
Kees Cook