linux-kernel - Re: [PATCH v2] RISC-V: cpu: refactor deprecated strncpy

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Message-ID: <mhng-93dd039a-f342-4239-a0a8-f1e31f7d8b5e@palmer-ri-x1c9>
Date:   Wed, 02 Aug 2023 13:41:52 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     keescook@...omium.org
CC:     justinstitt@...gle.com, Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, ndesaulniers@...gle.com,
        linux-hardening@...r.kernel.org
Subject:     Re: [PATCH v2] RISC-V: cpu: refactor deprecated strncpy

On Wed, 02 Aug 2023 13:36:03 PDT (-0700), keescook@...omium.org wrote:
> On Wed, Aug 02, 2023 at 12:21:58AM +0000, Justin Stitt wrote:
>> `strncpy` is deprecated for use on NUL-terminated destination strings [1].
>>
>> Favor not copying strings onto stack and instead use strings directly.
>> This avoids hard-coding sizes and buffer lengths all together.
>>
>> Link: https://github.com/KSPP/linux/issues/90
>> Cc: linux-hardening@...r.kernel.org
>> Suggested-by: Kees Cook <keescook@...omium.org>
>> Signed-off-by: Justin Stitt <justinstitt@...gle.com>
>
> I like it! ;)
>
> Reviewed-by: Kees Cook <keescook@...omium.org>

Thanks, I just queue it up for fixes (might take a bit to build test, 
I'm a bit backed up).

Reviewed-by: Palmer Dabbelt <palmer@...osinc.com>
Acked-by: Palmer Dabbelt <palmer@...osinc.com>

If you wanted to take it for some hardening thing, though -- otherwise 
it'll likely end up on my fixes later today.