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Message-ID: <YxndVYLcqFPbIRZz@work> Date: Thu, 8 Sep 2022 13:17:25 +0100 From: "Gustavo A. R. Silva" <gustavoars@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>, Rich Felker <dalias@...c.org>, linux-sh@...r.kernel.org, Geert Uytterhoeven <geert@...ux-m68k.org>, Paul Mundt <lethal@...ux-sh.org>, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] sh: machvec: Use char[] for section boundaries On Wed, Sep 07, 2022 at 04:43:45PM -0700, Kees Cook wrote: > As done for other sections, define the extern as a character array, > which relaxes many of the compiler-time object size checks, which would > otherwise assume it's a single long. Solves the following build error: > > arch/sh/kernel/machvec.c: error: array subscript 'struct sh_machine_vector[0]' is partly outside array bounds of 'long int[1]' [-Werror=array-bounds]: => 105:33 > > Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp> > Cc: Rich Felker <dalias@...c.org> > Cc: linux-sh@...r.kernel.org > Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org> > Link: https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2209050944290.964530@ramsan.of.borg/ > Fixes: 9655ad03af2d ("sh: Fixup machvec support.") > Signed-off-by: Kees Cook <keescook@...omium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@...nel.org> Thanks -- Gustavo
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