From: Catalin Marinas <catalin.marinas@arm.com>
To: linux-arm-kernel@lists.infradead.org, Ard Biesheuvel <ardb@kernel.org>
Cc: Will Deacon <will@kernel.org>, Nathan Chancellor <nathan@kernel.org>
Subject: Re: [PATCH] arm64: kprobes: Drop ID map text from kprobes blacklist
Date: Tue, 7 Feb 2023 18:54:10 +0000 [thread overview]
Message-ID: <167579604682.3462773.5756294339908050029.b4-ty@arm.com> (raw)
In-Reply-To: <20230204101807.2862321-1-ardb@kernel.org>
On Sat, 04 Feb 2023 11:18:07 +0100, Ard Biesheuvel wrote:
> The ID mapped text region is never accessed via the normal kernel
> mapping of text, and so it was moved into .rodata instead. This means it
> is no longer considered as a suitable place for kprobes by default, and
> the explicit blacklist is unnecessary, and actually results in an error
> message at boot:
>
> kprobes: Failed to populate blacklist (error -22), kprobes not restricted, be careful using them!
>
> [...]
Applied to arm64 (for-next/efi-boot-mmu-on), thanks!
[1/1] arm64: kprobes: Drop ID map text from kprobes blacklist
https://git.kernel.org/arm64/c/a088cf8eee12
--
Catalin
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prev parent reply other threads:[~2023-02-07 18:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-04 10:18 [PATCH] arm64: kprobes: Drop ID map text from kprobes blacklist Ard Biesheuvel
2023-02-05 18:37 ` Nathan Chancellor
2023-02-07 10:15 ` Mark Rutland
2023-02-07 18:54 ` Catalin Marinas [this message]
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