linux-kernel - [PATCH 00/11] x86/ibt: FineIBT-BHI

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-next>] [day] [month] [year] [list]

Message-ID: <20250207121529.222723073@infradead.org>
Date: Fri, 07 Feb 2025 13:15:29 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
 peterz@...radead.org,
 alyssa.milburn@...el.com,
 scott.d.constable@...el.com,
 joao@...rdrivepizza.com,
 andrew.cooper3@...rix.com,
 jpoimboe@...nel.org,
 jose.marchesi@...cle.com,
 hjl.tools@...il.com,
 ndesaulniers@...gle.com,
 samitolvanen@...gle.com,
 nathan@...nel.org,
 ojeda@...nel.org,
 kees@...nel.org,
 alexei.starovoitov@...il.com,
 mhiramat@...nel.org
Subject: [PATCH 00/11] x86/ibt: FineIBT-BHI

Hi!

Respin of the FineIBT-BHI patches.

Scott has managed to get LLVM bits merged:

  https://github.com/llvm/llvm-project/commit/e223485c9b38a5579991b8cebb6a200153eee245

Which prompted me to update these patches once again.

They boot and build the next kernel on my ADL when booted with: cfi=fineibt+bhi

Aside from the last two patches -- which implement the FineIBT-BHI scheme
proper -- I'm planning on getting these patches merged 'soon'.

Scott, what those last two patches need, aside from a lot more testing, is a
coherent writeup of how the mitigation works and ideally also a few numbers
proving the performance gains are worth it.

Last version at:

  https://lore.kernel.org/all/20240927194856.096003183@infradead.org/T/#u

Current patches:

  git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/fineibt-bhi

Patches apply on top of tip/master.