linux-kernel - [PATCH v4 0/2] livepatch, arm64/module: Enable late module 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 for Android: free password hash cracker in your pocket

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

Message-ID: <20250522205205.3408764-1-dylanbhatch@google.com>
Date: Thu, 22 May 2025 20:52:03 +0000
From: Dylan Hatch <dylanbhatch@...gle.com>
To: Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Josh Poimboeuf <jpoimboe@...nel.org>, Jiri Kosina <jikos@...nel.org>, 
	Miroslav Benes <mbenes@...e.cz>, Petr Mladek <pmladek@...e.com>, 
	Joe Lawrence <joe.lawrence@...hat.com>
Cc: Dylan Hatch <dylanbhatch@...gle.com>, Song Liu <song@...nel.org>, 
	Ard Biesheuvel <ardb@...nel.org>, Sami Tolvanen <samitolvanen@...gle.com>, 
	Peter Zijlstra <peterz@...radead.org>, "Mike Rapoport (Microsoft)" <rppt@...nel.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	live-patching@...r.kernel.org, Roman Gushchin <roman.gushchin@...ux.dev>, 
	Toshiyuki Sato <fj6611ie@...jp.fujitsu.com>
Subject: [PATCH v4 0/2] livepatch, arm64/module: Enable late module relocations.

Late relocations (after the module is initially loaded) are needed when
livepatches change module code. This is supported by x86, ppc, and s390.
This series borrows the x86 methodology to reach the same level of
support on arm64, and moves the text-poke locking into the core livepatch
code to reduce redundancy.

Dylan Hatch (2):
  livepatch, x86/module: Generalize late module relocation locking.
  arm64/module: Use text-poke API for late relocations.

 arch/arm64/kernel/module.c | 113 ++++++++++++++++++++++---------------
 arch/x86/kernel/module.c   |   8 +--
 kernel/livepatch/core.c    |  18 ++++--
 3 files changed, 84 insertions(+), 55 deletions(-)

-- 
2.49.0.1151.ga128411c76-goog