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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <167365171646.590452.12835527795605016769.b4-ty@chromium.org>
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