linux-kernel - Re: [RFC PATCH] panic: Add new taint flag for fault injection

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Message-ID: <Y4mYdhRPsgfUrNyt@infradead.org>
Date:   Thu, 1 Dec 2022 22:17:26 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Chris Mason <clm@...a.com>, Steven Rostedt <rostedt@...dmis.org>,
        Kees Cook <keescook@...omium.org>,
        "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        KP Singh <kpsingh@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Florent Revest <revest@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christoph Hellwig <hch@...radead.org>
Subject: Re: [RFC PATCH] panic: Add new taint flag for fault injection

On Thu, Dec 01, 2022 at 01:18:09PM -0800, Linus Torvalds wrote:
> They aren't. They need fixing. Thankfully they haven't made it
> upstream, and I most definitely do not want random users mis-using
> "error injection" to inject random bpf code for non-error cases.

Which seem to be what HID-BPF is all about.  And if I see linux-next
reports correctly that actually got merged despite all the oustanding
objections.