linux-kernel - Re: [PATCH] lkdtm: Fix content of section containing lkdtm_rodata_do

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Message-Id: <163372786562.2954264.14524923434528443035.b4-ty@chromium.org>
Date:   Fri,  8 Oct 2021 14:17:49 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     Kees Cook <keescook@...omium.org>, linux-kernel@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>, stable@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] lkdtm: Fix content of section containing lkdtm_rodata_do_nothing()

On Fri, 8 Oct 2021 18:58:40 +0200, Christophe Leroy wrote:
> On a kernel without CONFIG_STRICT_KERNEL_RWX, running EXEC_RODATA
> test leads to "Illegal instruction" failure.
> 
> Looking at the content of rodata_objcopy.o, we see that the
> function content zeroes only:
> 
> 	Disassembly of section .rodata:
> 
> [...]

Applied to for-next/lkdtm, thanks!

[1/1] lkdtm: Fix content of section containing lkdtm_rodata_do_nothing()
      https://git.kernel.org/kees/c/19c3069c5f5f

Also, can you take a moment and get "patatt" set up[1] for signing your
patches? I would appreciate that since b4 yells at me when patches aren't
signed. :)

-Kees

[1] https://github.com/mricon/patatt

-- 
Kees Cook