Date: Wed, 7 Mar 2018 16:36:17 -0800 From: Kees Cook <keescook@...omium.org> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Tycho Andersen <tycho@...ho.ws>, "Tobin C. Harding" <me@...in.cc>, Jonathan Corbet <corbet@....net>, Pantelis Antoniou <pantelis.antoniou@...sulko.com>, "Steven Rostedt (VMware)" <rostedt@...dmis.org>, Kernel Hardening <kernel-hardening@...ts.openwall.com>, LKML <linux-kernel@...r.kernel.org>, "Gustavo A. R. Silva" <gustavo@...eddedor.com> Subject: Re: [PATCH] vsprintf: Remove accidental VLA usage On Wed, Mar 7, 2018 at 4:03 PM, Andrew Morton <akpm@...ux-foundation.org> wrote: > On Wed, 7 Mar 2018 15:59:27 -0800 Kees Cook <keescook@...omium.org> wrote: > >> I didn't want to encourage a global macro that _lacked_ the safety >> built into the max*() family, though... thoughts for a reasonable >> approach? > > I think SIMPLE_MAX() is OK. Along with one of /* these */ things ;) Sounds good. I will resend with net/ipv/proc.c and one other fixed as well... -Kees -- Kees Cook Pixel Security
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