linux-kernel - Re: [v2 PATCH] arm64: kprobes: check the return value of set_memory

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Message-Id: <176252582270.594123.5776451852146900691.b4-ty@kernel.org>
Date: Fri,  7 Nov 2025 15:53:48 +0000
From: Will Deacon <will@...nel.org>
To: catalin.marinas@....com,
	ryan.roberts@....com,
	dev.jain@....com,
	punit.agrawal@....qualcomm.com,
	Yang Shi <yang@...amperecomputing.com>
Cc: kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [v2 PATCH] arm64: kprobes: check the return value of set_memory_rox()

On Tue, 04 Nov 2025 13:49:47 -0800, Yang Shi wrote:
> Since commit a166563e7ec3 ("arm64: mm: support large block mapping when
> rodata=full"), __change_memory_common has more chance to fail due to
> memory allocation failure when splitting page table. So check the return
> value of set_memory_rox(), then bail out if it fails otherwise we may have
> RW memory mapping for kprobes insn page.
> 
> 
> [...]

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

[1/1] arm64: kprobes: check the return value of set_memory_rox()
      https://git.kernel.org/arm64/c/0ec364c0c95f

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev