From: Kees Cook <keescook@chromium.org>
To: nathan@kernel.org, Arnd Bergmann <arnd@arndb.de>
Cc: Kees Cook <keescook@chromium.org>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
linux-arch@vger.kernel.org, xiafukun@huawei.com, ardb@kernel.org,
zhaowenhui8@huawei.com
Subject: Re: [PATCH] vmlinux.lds.h: Fix placement of '.data..decrypted' section
Date: Tue, 8 Nov 2022 10:00:17 -0800 [thread overview]
Message-ID: <166793041556.1591113.6967612003001783225.b4-ty@chromium.org> (raw)
In-Reply-To: <20221108174934.3384275-1-nathan@kernel.org>
On Tue, 8 Nov 2022 10:49:34 -0700, Nathan Chancellor wrote:
> Commit d4c639990036 ("vmlinux.lds.h: Avoid orphan section with !SMP")
> fixed an orphan section warning by adding the '.data..decrypted' section
> to the linker script under the PERCPU_DECRYPTED_SECTION define but that
> placement introduced a panic with !SMP, as the percpu sections are not
> instantiated with that configuration so attempting to access variables
> defined with DEFINE_PER_CPU_DECRYPTED() will result in a page fault.
>
> [...]
Applied to for-linus/hardening, thanks!
[1/1] vmlinux.lds.h: Fix placement of '.data..decrypted' section
https://git.kernel.org/kees/c/000f8870a47b
--
Kees Cook
prev parent reply other threads:[~2022-11-08 18:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-08 17:49 [PATCH] vmlinux.lds.h: Fix placement of '.data..decrypted' section Nathan Chancellor
2022-11-08 18:00 ` Kees Cook [this message]
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