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Message-ID: <ZeDiZrrLuqkvxrIY@smile.fi.intel.com>
Date: Thu, 29 Feb 2024 22:00:38 +0200
From: Andy Shevchenko <andriy.shevchenko@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: "David S. Miller" <davem@...emloft.net>,
	Andreas Larsson <andreas@...sler.com>,
	Masahiro Yamada <masahiroy@...nel.org>,
	Sam Ravnborg <sam@...nborg.org>, Helge Deller <deller@....de>,
	Guo Ren <guoren@...nel.org>, sparclinux@...r.kernel.org,
	Catalin Marinas <catalin.marinas@....com>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH] sparc: vdso: Disable UBSAN instrumentation

On Fri, Feb 23, 2024 at 08:59:45AM -0800, Kees Cook wrote:
> The UBSAN instrumentation cannot work in the vDSO since it is executing
> in userspace, so disable it in the Makefile. Fixes the build failures
> such as:
> 
> arch/sparc/vdso/vclock_gettime.c:217: undefined reference to `__ubsan_handle_shift_out_of_bounds'
> 
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Andreas Larsson <andreas@...sler.com>
> Cc: Masahiro Yamada <masahiroy@...nel.org>
> Cc: Sam Ravnborg <sam@...nborg.org>
> Cc: Helge Deller <deller@....de>
> Cc: Guo Ren <guoren@...nel.org>
> Cc: sparclinux@...r.kernel.org

I dunno how you applied patches, but these Cc seems to appear in a few commits
in your hardening branch.

I formatted patch from 9fd54b08040669, checked out the new branch just before
this commit and run `git am 0001-...`. I don't see them.

-- 
With Best Regards,
Andy Shevchenko



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