From: Catalin Marinas <catalin.marinas@arm.com>
To: will@kernel.org, Dan Li <ashimida@linux.alibaba.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC]arm64:Mark __stack_chk_guard as __ro_after_init
Date: Thu, 16 Sep 2021 18:08:25 +0100 [thread overview]
Message-ID: <163181210192.884883.7181525441852917097.b4-ty@arm.com> (raw)
In-Reply-To: <1631612642-102881-1-git-send-email-ashimida@linux.alibaba.com>
On Tue, 14 Sep 2021 17:44:02 +0800, Dan Li wrote:
> __stack_chk_guard is setup once while init stage and never changed
> after that.
>
> Although the modification of this variable at runtime will usually
> cause the kernel to crash (so dose the attacker), it should be marked
> as _ro_after_init, and it should not affect performance if it is
> placed in the ro_after_init section.
>
> [...]
Applied to arm64 (for-next/fixes), thanks!
[1/1] arm64:Mark __stack_chk_guard as __ro_after_init
https://git.kernel.org/arm64/c/9fcb2e93f41c
--
Catalin
prev parent reply other threads:[~2021-09-16 17:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 9:44 [PATCH] [RFC]arm64:Mark __stack_chk_guard as __ro_after_init Dan Li
2021-09-14 9:58 ` Russell King (Oracle)
2021-09-14 10:17 ` Mark Rutland
2021-09-15 1:57 ` ashimida
2021-09-15 9:19 ` Mark Rutland
2021-09-15 9:35 ` Dan Li
2021-09-16 17:08 ` Catalin Marinas [this message]
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