linux-kernel - Re: [PATCH v2 2/2] arm64/module: Use text-poke API for late relocations.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAPhsuW4LO9Cr8kpTeNR7nBw1FYrNrXBndYtcTEnA408GL1jT0A@mail.gmail.com>
Date: Mon, 21 Apr 2025 17:35:26 -0700
From: Song Liu <song@...nel.org>
To: Dylan Hatch <dylanbhatch@...gle.com>
Cc: Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, 
	Martin KaFai Lau <martin.lau@...ux.dev>, Eduard Zingerman <eddyz87@...il.com>, 
	Yonghong Song <yonghong.song@...ux.dev>, John Fastabend <john.fastabend@...il.com>, 
	KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, 
	Jiri Olsa <jolsa@...nel.org>, Puranjay Mohan <puranjay@...nel.org>, 
	Xu Kuohai <xukuohai@...weicloud.com>, Philippe Mathieu-Daudé <philmd@...aro.org>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
	"Mike Rapoport (Microsoft)" <rppt@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Geert Uytterhoeven <geert@...ux-m68k.org>, Luis Chamberlain <mcgrof@...nel.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, Ard Biesheuvel <ardb@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, Roman Gushchin <roman.gushchin@...ux.dev>
Subject: Re: [PATCH v2 2/2] arm64/module: Use text-poke API for late relocations.

On Fri, Apr 11, 2025 at 6:10 PM Dylan Hatch <dylanbhatch@...gle.com> wrote:
>
> To enable late module patching, livepatch modules need to be able to
> apply some of their relocations well after being loaded. In this
> scenario, use the text-poking API to allow this, even with
> STRICT_MODULE_RWX.
>
> This patch is largely based off commit 88fc078a7a8f6 ("x86/module: Use
> text_poke() for late relocations").
>
> Signed-off-by: Dylan Hatch <dylanbhatch@...gle.com>

Acked-by: Song Liu <song@...nel.org>