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Date: Tue, 25 Apr 2017 19:58:02 -0700 From: Jessica Yu <jeyu@...hat.com> To: Jon Masters <jcm@...masters.org> Cc: Kees Cook <keescook@...omium.org>, Rusty Russell <rusty@...tcorp.com.au>, "Peter Zijlstra (Intel)" <peterz@...radead.org>, Josh Poimboeuf <jpoimboe@...hat.com>, Ard Biesheuvel <ard.biesheuvel@...aro.org>, Heinrich Schuchardt <xypron.glpk@....de>, Nicholas Piggin <npiggin@...il.com>, Chris Metcalf <cmetcalf@...lanox.com>, linux-kernel@...r.kernel.org, Lucas De Marchi <lucas.demarchi@...el.com> Subject: Re: [PATCH v2 2/2] module: Add module name to modinfo +++ Jon Masters [25/04/17 03:04 -0400]: >Nevermind. Missread the patch as doing something different on first pass. It's good to give the kmod folks a heads up anyway (as name would be visible in modinfo), thanks Jon! >> On Apr 25, 2017, at 03:00, Jon Masters <jcm@...masters.org> wrote: >> >>> On 04/21/2017 06:35 PM, Kees Cook wrote: >>> >>> Accessing the mod structure (e.g. for mod->name) prior to having completed >>> check_modstruct_version() can result in writing garbage to the error logs >>> if the layout of the mod structure loaded from disk doesn't match the >>> running kernel's mod structure layout. This kind of mismatch will become >>> much more likely if a kernel is built with different randomization seed >>> for the struct layout randomization plugin. >>> >>> Instead, add and use a new modinfo string for logging the module name. >> >> +Lucas - probably something that the modinfo kmod utility should track. >> >> Jon. >>
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