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Date: Tue, 14 Apr 2026 07:25:12 -1000
From: Tejun Heo <tj@kernel.org>
To: Cheng-Yang Chou <yphbchou0911@gmail.com>
Cc: sched-ext@lists.linux.dev, David Vernet <void@manifault.com>,
	Andrea Righi <arighi@nvidia.com>,
	Changwoo Min <changwoo@igalia.com>,
	Juntong Deng <juntong.deng@outlook.com>,
	Ching-Chun Huang <jserv@ccns.ncku.edu.tw>,
	Chia-Ping Tsai <chia7712@gmail.com>,
	Emil Tsalapatis <emil@etsalapatis.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 07/10] sched_ext: Add verifier-time kfunc context filter
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References: <20260410063046.3556100-1-tj@kernel.org>
 <20260410063046.3556100-8-tj@kernel.org>
 <f2ab3yg5niso6hxqe7sd4jmv5xzdizk3khcspm5bylfbn3mj44@tpyiezvs4cod>
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On Tue, Apr 14, 2026 at 08:38:37PM +0800, Cheng-Yang Chou wrote:
> So I think we should do the following:
> 
> 1. Add a filter to deny all context-sensitive kfuncs for non-SCX
>    struct_ops programs, not just the rq-locked ones.
>    This makes the runtime OOB in scx_prog_sched() unreachable.

Yeah, let's do that.

Thanks.

-- 
tejun