From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Borislav Petkov <bp@suse.de>
Cc: AC <achirvasub@gmail.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Marco Elver <elver@google.com>, Arnd Bergmann <arnd@arndb.de>,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org,
kasan-dev@googlegroups.com, nborisov@suse.com,
seth.forshee@canonical.com, yamada.masahiro@socionext.com
Subject: Re: [PATCH] x86/build: Disable CET instrumentation in the kernel for 32-bit too
Date: Mon, 8 Feb 2021 12:12:59 -0600 [thread overview]
Message-ID: <20210208181259.hwmnoldx627jhvlm@treble> (raw)
In-Reply-To: <20210208162543.GH17908@zn.tnic>
On Mon, Feb 08, 2021 at 05:25:43PM +0100, Borislav Petkov wrote:
> On Mon, Feb 08, 2021 at 10:19:33AM -0500, AC wrote:
> > That did fix it, thank you!
>
> Thanks!
>
> ---
> From: Borislav Petkov <bp@suse.de>
> Date: Mon, 8 Feb 2021 16:43:30 +0100
> Subject: [PATCH] x86/build: Disable CET instrumentation in the kernel for 32-bit too
>
> Commit
>
> 20bf2b378729 ("x86/build: Disable CET instrumentation in the kernel")
>
> disabled CET instrumentation which gets added by default by the Ubuntu
> gcc9 and 10 by default, but did that only for 64-bit builds. It would
> still fail when building a 32-bit target. So disable CET for all x86
> builds.
>
> Fixes: 20bf2b378729 ("x86/build: Disable CET instrumentation in the kernel")
> Reported-by: AC <achirvasub@gmail.com>
> Signed-off-by: Borislav Petkov <bp@suse.de>
> Tested-by: AC <achirvasub@gmail.com>
> Link: https://lkml.kernel.org/r/YCCIgMHkzh/xT4ex@arch-chirva.localdomain
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
--
Josh
prev parent reply other threads:[~2021-02-08 18:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-07 23:31 PROBLEM: 5.11.0-rc7 fails to compile with error: ‘-mindirect-branch’ and ‘-fcf-protection’ are not compatible Stuart Little
2021-02-08 0:26 ` Stuart Little
2021-02-08 0:40 ` Stuart Little
2021-02-08 9:51 ` Marco Elver
2021-02-08 12:12 ` Borislav Petkov
2021-02-08 15:19 ` AC
2021-02-08 16:25 ` [PATCH] x86/build: Disable CET instrumentation in the kernel for 32-bit too Borislav Petkov
2021-02-08 18:12 ` Josh Poimboeuf [this message]
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