From: Will Deacon <will@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
Ard Biesheuvel <ardb+git@google.com>
Cc: catalin.marinas@arm.com, kernel-team@android.com,
Will Deacon <will@kernel.org>, Kees Cook <keescook@chromium.org>,
mark.rutland@arm.com, Sami Tolvanen <samitolvanen@google.com>,
Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [PATCH 0/2] arm64: Fix for dynamic SCS under full LTO take #2
Date: Tue, 30 Jan 2024 13:14:51 +0000 [thread overview]
Message-ID: <170661556730.3840407.1476793732293805938.b4-ty@kernel.org> (raw)
In-Reply-To: <20240123133052.1417449-4-ardb+git@google.com>
On Tue, 23 Jan 2024 14:30:53 +0100, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@kernel.org>
>
> Disabling unwind table generation turns out not to fix the issue with
> full LTO and dynamic shadow call stack, as reported by Sami. So instead,
> disable LTO for the compilation unit in question.
>
> Implemented as a revert + new patch so that only the real fix needs to
> go to -stable.
>
> [...]
Applied to arm64 (for-next/fixes), thanks!
[1/2] arm64: Revert "scs: Work around full LTO issue with dynamic SCS"
https://git.kernel.org/arm64/c/2fa28abd1090
[2/2] arm64: scs: Disable LTO for SCS patching code
https://git.kernel.org/arm64/c/d104a6fef3fe
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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prev parent reply other threads:[~2024-01-30 13:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-23 13:30 [PATCH 0/2] arm64: Fix for dynamic SCS under full LTO take #2 Ard Biesheuvel
2024-01-23 13:30 ` [PATCH 1/2] arm64: Revert "scs: Work around full LTO issue with dynamic SCS" Ard Biesheuvel
2024-01-23 13:30 ` [PATCH 2/2] arm64: scs: Disable LTO for SCS patching code Ard Biesheuvel
2024-01-23 17:06 ` [PATCH 0/2] arm64: Fix for dynamic SCS under full LTO take #2 Sami Tolvanen
2024-01-23 22:27 ` Kees Cook
2024-01-30 13:14 ` Will Deacon [this message]
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