linux-kernel - Re: [PATCH] arch: arm64: set __nocfi on swsusp_arch

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Message-ID: <176910618702.3974174.11617330390922367750.b4-ty@arm.com>
Date: Thu, 22 Jan 2026 18:23:49 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: Will Deacon <will@...nel.org>, James Morse <james.morse@....com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Zhaoyang Huang <huangzhaoyang@...il.com>, steve.kang@...soc.com,
	"zhaoyang.huang" <zhaoyang.huang@...soc.com>
Cc: jeson.gao@...soc.com, xuewen.yan@...soc.com
Subject: Re: [PATCH] arch: arm64: set __nocfi on swsusp_arch_resume

On Thu, 22 Jan 2026 19:49:25 +0800, zhaoyang.huang wrote:
> A DABT is reported[1] on an android based system when resume from hiberate,
> which is root caused as CFI will plant stub code[2] to verify the
> swsusp_arch_suspend_exit's authentication, where the hash value is stored
> before the page that alloced by create_safe_exec_page. We also have
> tried to copy the hash value together with the function but get failed since
> the value is not on the desired position(src_start - 4). So we solve
> this issue by setting __nocfi on swsusp_arch_resume and it works.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arch: arm64: set __nocfi on swsusp_arch_resume
      (no commit info)

-- 
Catalin