From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@infradead.org (Christoph Hellwig) Date: Sat, 13 May 2017 00:21:37 -0700 Subject: [kernel-hardening] Re: [PATCH v9 1/4] syscalls: Verify address limit before returning to user-mode In-Reply-To: <20170512203044.GI4626@worktop.programming.kicks-ass.net> References: <20170512072802.5a686f23@mschwideX1> <20170512075458.09a3a1ce@mschwideX1> <20170512202106.GO22219@n2100.armlinux.org.uk> <20170512203044.GI4626@worktop.programming.kicks-ass.net> Message-ID: <20170513072137.GA29771@infradead.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, May 12, 2017 at 10:30:44PM +0200, Peter Zijlstra wrote: > On stack variable length arrays get implemented by the compiler doing > alloca(), and we sadly have a few of those around. I've just got rid of one of those and I wish they would appear entirely as they are horrible in so many different ways. Sparse warns about them, btw.