linux-hardening - Re: [PATCH v7 7/7] riscv: Add RISC-V Kernel Control Flow Integrity implementation

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Message-ID: <202511191549.E163044@keescook>
Date: Wed, 19 Nov 2025 16:40:27 -0800
From: Kees Cook <kees@...nel.org>
To: Jeff Law <jeffreyalaw@...il.com>
Cc: Qing Zhao <qing.zhao@...cle.com>, Uros Bizjak <ubizjak@...il.com>,
	Joseph Myers <josmyers@...hat.com>,
	Richard Biener <rguenther@...e.de>,
	Andrew Pinski <pinskia@...il.com>, Jakub Jelinek <jakub@...hat.com>,
	Martin Uecker <uecker@...raz.at>,
	Peter Zijlstra <peterz@...radead.org>,
	Ard Biesheuvel <ardb@...nel.org>, Jan Hubicka <hubicka@....cz>,
	Richard Earnshaw <richard.earnshaw@....com>,
	Richard Sandiford <richard.sandiford@....com>,
	Marcus Shawcroft <marcus.shawcroft@....com>,
	Kyrylo Tkachov <kyrylo.tkachov@....com>,
	Kito Cheng <kito.cheng@...il.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Andrew Waterman <andrew@...ive.com>,
	Jim Wilson <jim.wilson.gcc@...il.com>,
	Dan Li <ashimida.1990@...il.com>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	Ramon de C Valle <rcvalle@...gle.com>,
	Joao Moreira <joao@...rdrivepizza.com>,
	Nathan Chancellor <nathan@...nel.org>,
	Bill Wendling <morbo@...gle.com>,
	"Osterlund, Sebastian" <sebastian.osterlund@...el.com>,
	"Constable, Scott D" <scott.d.constable@...el.com>,
	gcc-patches@....gnu.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v7 7/7] riscv: Add RISC-V Kernel Control Flow Integrity
 implementation

On Wed, Nov 19, 2025 at 08:35:35AM -0700, Jeff Law wrote:
> Note there's still review work to do on the RISC-V bits.  But it's worth
> noting your patch triggers ICEs in the RISC-V testsuite.  See:
> 
> https://github.com/ewlu/gcc-precommit-ci/issues/4115#issuecomment-3543758441

Ah thanks for the pointer -- I didn't know there were any CIs running on
patch submission!

I fixed a bunch of the lint issues and found a few more too. :)

I'll get the test failures tracked down...

-- 
Kees Cook