Date: Wed, 4 Oct 2017 10:55:42 +0200 From: Greg KH <gregkh@...uxfoundation.org> To: "Tobin C. Harding" <me@...in.cc> Cc: Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>, Ian Campbell <ijc@...lion.org.uk>, Sergey Senozhatsky <sergey.senozhatsky@...il.com>, kernel-hardening@...ts.openwall.com, linux-kernel@...r.kernel.org, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will.deacon@....com>, Steven Rostedt <rostedt@...dmis.org>, William Roberts <william.c.roberts@...el.com>, Chris Fries <cfries@...gle.com>, Dave Weinstein <olorin@...gle.com> Subject: Re: [RFC V2 1/6] lib: vsprintf: additional kernel pointer filtering options On Sun, Oct 01, 2017 at 11:06:45AM +1100, Tobin C. Harding wrote: > Add the kptr_restrict setting of 3 which results in both > %p and %pK values being replaced by zeros. > > Add an additional %pP value inspired by the Grsecurity > option which explicitly whitelists pointers for output. > > Amend scripts/checkpatch.pl to handle %pP. > > This patch is based on work by William Roberts > <william.c.roberts@...el.com> > > Signed-off-by: Tobin C. Harding <me@...in.cc> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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