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Date: Thu, 1 Dec 2022 11:48:48 -0500 From: Steven Rostedt <rostedt@...dmis.org> To: Kees Cook <keescook@...omium.org> Cc: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>, LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...en8.de>, Alexei Starovoitov <alexei.starovoitov@...il.com>, Linus Torvalds <torvalds@...ux-foundation.org>, 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>, Chris Mason <clm@...a.com> Subject: Re: [RFC PATCH] panic: Add new taint flag for fault injection On Thu, 1 Dec 2022 08:39:28 -0800 Kees Cook <keescook@...omium.org> wrote: > On Fri, Dec 02, 2022 at 01:37:13AM +0900, Masami Hiramatsu (Google) wrote: > > From: Masami Hiramatsu (Google) <mhiramat@...nel.org> > > > > Since the function error injection framework in the fault injection > > subsystem can change the function code flow forcibly, it may cause > > unexpected behavior (but that is the purpose of this feature). > > To identify this in the kernel oops message, add a new taint flag > > for this, and set it if it is (and similar things in BPF) used. > > Why is hooking through BPF considered to be "fault injection" here? > Have you not been reading this thread? -- Steve
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