linux-hardening - Re: [PATCH v3] arm64: hibernate: Fix level3 translation fault in swsusp

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Message-Id: <171354500626.1387030.2608430533776260920.b4-ty@arm.com>
Date: Fri, 19 Apr 2024 17:44:08 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: will@...nel.org,
	rppt@...nel.org,
	Yaxiong Tian <tianyaxiong@...inos.cn>
Cc: keescook@...omium.org,
	tony.luck@...el.com,
	gpiccoli@...lia.com,
	akpm@...ux-foundation.org,
	ryan.roberts@....com,
	wangkefeng.wang@...wei.com,
	ardb@...nel.org,
	david@...hat.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	xiongxin <xiongxin@...inos.cn>
Subject: Re: [PATCH v3] arm64: hibernate: Fix level3 translation fault in swsusp_save()

On Wed, 17 Apr 2024 10:52:48 +0800, Yaxiong Tian wrote:
> On ARM64 machines using UEFI, if can_set_direct_map() return false by
> setting some CONFIGS in kernel build or grub,such as
> NO CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT、NO CONFIG_KFENCE
> NO CONFIG_RODATA_FULL_DEFAULT_ENABLED.Also with setting rodata=off、
> debug_pagealloc=off in grub and NO CONFIG_KFENCE.
> swsusp_save() will fail due to can't finding the map table under the
> nomap memory.such as:
> 
> [...]

Applied to arm64 (for-next/fixes), thanks! I tidied up the commit log a
bit.

[1/1] arm64: hibernate: Fix level3 translation fault in swsusp_save()
      https://git.kernel.org/arm64/c/50449ca66cc5

-- 
Catalin