linux-hardening - Re: [PATCH v2] riscv/purgatory: Do not use fortified string functions

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Message-Id: <168564402237.2891605.1600418987887898293.b4-ty@chromium.org>
Date:   Thu,  1 Jun 2023 11:27:03 -0700
From:   Kees Cook <keescook@...omium.org>
To:     keescook@...omium.org, paul.walmsley@...ive.com
Cc:     ndesaulniers@...gle.com, linux-kernel@...r.kernel.org,
        gustavoars@...nel.org, linux@...mhuis.info,
        heiko.stuebner@...ll.eu, linux-hardening@...r.kernel.org,
        aou@...s.berkeley.edu, linux-riscv@...ts.infradead.org,
        joanbrugueram@...il.com, masahiroy@...nel.org,
        conor.dooley@...rochip.com, ajones@...tanamicro.com, hi@...ssa.is,
        palmer@...belt.com
Subject: Re: [PATCH v2] riscv/purgatory: Do not use fortified string functions

On Thu, 1 Jun 2023 09:00:28 -0700, Kees Cook wrote:
> With the addition of -fstrict-flex-arrays=3, struct sha256_state's
> trailing array is no longer ignored by CONFIG_FORTIFY_SOURCE:
> 
> struct sha256_state {
>         u32 state[SHA256_DIGEST_SIZE / 4];
>         u64 count;
>         u8 buf[SHA256_BLOCK_SIZE];
> };
> 
> [...]

Applied to for-next/hardening, thanks!

[1/1] riscv/purgatory: Do not use fortified string functions
      https://git.kernel.org/kees/c/ca2ca08f479d

-- 
Kees Cook